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Finding the Fourth Proportional to 412,936.60, 619,404.90 and 132,482.20

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Solution

The fourth proportional to 412,936.60, 619,404.90 and 132,482.20 is: 198,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,936.60 : 619,404.90 = 132,482.20 : x
  2. Step 2: Convert to fraction form
    412,936.60/619,404.90 = 132,482.20/x
  3. Step 3: Cross multiply
    412,936.60x = 619,404.90 × 132,482.20
  4. Step 4: Simplify right side
    412,936.60x = 82,060,123,842.78
  5. Step 5: Solve for x
    x = 82,060,123,842.78/412,936.60
  6. Step 6: Final answer
    x = 198,723.30

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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.