Hi folks.
When using the Dimension Box DB (formerly named Value Control Box or VCB), you can use a scale factor such as 1.5 or 7.3 or 5 or whatever number. If you add a unit suffix like "in", "ft", "mm", etc, you will get that exact dimension along the axis on which you are scaling. Even better, if you scale along two direction or three direction , you can eneter separate scale factor or separate exact dimensions like 3',4' to get a 3 feet by 4 feet box.
If you have a ratio like 9/7, you can of course use a calculator to get 1.2857142857 and type that in the DB.
You can also use the trick explained in the attached SU file.
Just ideas.