superadam

I need to be able to resize a group of objects. One of the objects I know exactly the size I want and I would like to other to resize proportionately. For example, say I have a square and circle and I like their proportions. Now I want to resize the square to 1cm x 1cm and I would like the circle to resize as well. The only way I can seem to do this is by just resizing the group and then going back and checking the size of the square. I'm sure there has to be a better way. Any help would be great!