Answer:
The consolidated balance for the equipment account as of December 31, 2020 is $652,000.
Step-by-step explanation:
the original price allocation = $660,000 - $420,000
= $24000
(240000/10years)*3 years = $72,000
consolidated equipment
= book value + other company book value + original purchase price allocation - amortization of allocation
= $420,000 + $280,000 + $24000 - $72,000
= $652,000
Therefore, The consolidated balance for the equipment account as of December 31, 2020 is $652,000.