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Finding the Fourth Proportional to 402,990.48, 603,157.01 and 222,798.89

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Solution

The fourth proportional to 402,990.48, 603,157.01 and 222,798.89 is: 333,463.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,990.48 : 603,157.01 = 222,798.89 : x
  2. Step 2: Convert to fraction form
    402,990.48/603,157.01 = 222,798.89/x
  3. Step 3: Cross multiply
    402,990.48x = 603,157.01 × 222,798.89
  4. Step 4: Simplify right side
    402,990.48x = 134,382,708,193.94
  5. Step 5: Solve for x
    x = 134,382,708,193.94/402,990.48
  6. Step 6: Final answer
    x = 333,463.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.