YOU SAID:

the mouse is so fat he got eaten by the cat

INTO JAPANESE

ネズミはとても太っているので、猫に食べられた

BACK INTO ENGLISH

the rat was so fat that it was eaten by a cat

INTO JAPANESE

ネズミは猫に食べられるほど太っていた

BACK INTO ENGLISH

the rat was fat enough to be eaten by a cat

INTO JAPANESE

ネズミは猫に食べられるほど太っていた

BACK INTO ENGLISH

the rat was fat enough to be eaten by a cat