Final answer:
The balance in Tremen's 'Investment in Delany Company' account after all closing entries would be $3,340,000.
Step-by-step explanation:
The balance in Tremen's 'Investment in Delany Company' account can be calculated by adding the initial investment, the share of Delany's net income, and subtracting the share of dividends received.
Initial investment: $3,000,000
Share of Delany's net income: $1,000,000 x 40% = $400,000
Share of dividends received: $150,000 x 40% = $60,000 (4 quarters)
Therefore, the balance in Tremen's 'Investment in Delany Company' account would be $3,000,000 + $400,000 - $60,000 = $3,340,000.