You are evaluating the balance sheet for Fischer Corporation. From the balance sheet you find the following balances: cash and marketable securities $=$ $$400,000$; accounts receivable $=$ $$1,200,000$; inventory $=$ $$2,100,000$; accrued wages and taxes $=$ $$500,000$; accounts payable $=$ $$800,000$; and notes payable $=$ $$600,000.$ Calculate Fischer's

current ratio,

quick ratio, and

cash ratio.