dilution of paint

6.02 x 10^×23:1 

Chemistry is entirely different in most cases. Ratios are more often by mass, or moles.

Welsh yes the ratios in paint for modeling are volumetric.

A ratio of 5:1 is just what it says, 5 parts this to 1 part that. 

Just like military mission planning. An attacking force should have a ratio of 3:1 over a defending force for successful outcome. 

I have never taken chemistry, so I don’t know where the numbers that you speak of come from. But basic mathematic ratios usually just as they are written.

Whoa.. no attitude here. Just being helpful.

Basically I don't need attitude when asking for help. Just write you don't know or better yet skip it.

Basically it's a ratio for mixing paint to create a certain color. For example, 5:1 ratio is simply:

5 parts of Olive Drab, 1 part White will produce you a lighter shade of Olive Drab 

I didn't need a chemistry degree to figure that out........