Synonyms for Arrive at:

n.

decide, conclude, make up your mind, determine, commit yourself, adjudicate, settle, resolve, come down. arrive at (noun)
gain, attain, reach, HIT, make.

v.

attain (verb)
gain, HIT, reach.
fix (verb)
conclude, settle, resolve.
hit (verb)
attain.
motion (verb)
gain, attain, reach, HIT, make.

Other synonyms:

adjudicate, decide, conclude. come down, resolve, determine. settle. Other relevant words:
decide, determine, settle, attain, conclude, resolve.