Final answer:
The ABC Corporation's investment account for TCo at the end of 20X4 would have a balance of $315,000.
Step-by-step explanation:
The ABC Corporation's investment account for TCo at the end of 20X4 would have a balance of $315,000.
To calculate the balance, we start with the initial investment of $300,000 and add the share of TCo's profits and deduct the dividends received.
The share of profits is calculated by multiplying the profits of $100,000 by the ownership percentage of 30%, which gives $30,000. The investment balance is then increased by $30,000.
The dividends received are calculated based on the cash dividends of $50,000 and the ownership percentage of 30%, which gives $15,000. The investment balance is then decreased by $15,000.
Therefore, the final investment account balance for TCo would be $300,000 + $30,000 - $15,000 = $315,000.