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Finding the Fourth Proportional to 493,292.80, 739,939.20 and 227,572.30

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Solution

The fourth proportional to 493,292.80, 739,939.20 and 227,572.30 is: 341,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,292.80 : 739,939.20 = 227,572.30 : x
  2. Step 2: Convert to fraction form
    493,292.80/739,939.20 = 227,572.30/x
  3. Step 3: Cross multiply
    493,292.80x = 739,939.20 × 227,572.30
  4. Step 4: Simplify right side
    493,292.80x = 168,389,665,604.16
  5. Step 5: Solve for x
    x = 168,389,665,604.16/493,292.80
  6. Step 6: Final answer
    x = 341,358.45

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Similar ratio
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1.5x scale

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.