Resize Objects - Wizard...    
 WithThis Tool you can resize objects in the spreadsheet.    
Resize your objects (shapes or charts) with this usefull tool    
1.Select all objects to resize (include the Dominan Object)    
2.Select Dominan Object from the list. Object with the widht and height to copy    
3.Check the options width and height.    
...Press Apply button to homogenize the objects size.    
Spreadsheet Image Tools - Wizard