Vesa mount for the UE50RU7410 is 200mm x 200mm. The mount supports:

75 x 75mm, 100 x 100mm, 300 x 300mm, 600 x 400mm, 200 x 200mm, 400 x 400mm, 400 x 200mm, 400 x 300mm, 300 x 200mm, 50 x 50mm.

I leave the rest to you.