A company's trial balance as of December 31, 20X17, is as follows:

Account	Debit (Dr)	Credit (Cr)
Cash	$100,000
Accounts Receivable	$120,000
Inventory	$130,000
Prepaid Expenses	$60,000
Property, Plant & Equipment	$700,000
Accumulated Depreciation		$110,000
Accounts Payable		$130,000
Notes Payable		$170,000
Common Stock		$280,000
Retained Earnings		$360,000
Sales Revenue		$750,000
Cost of Goods Sold	$350,000
Operating Expenses	$200,000
Income Tax Expense	$100,000
Dividends	$60,000

Calculate the following:

1. Gross Profit
2. Total Assets
3. Total Liabilities
4. Total Equity