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Finding the Fourth Proportional to 367,572.20, 551,358.30 and 145,956.20

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Solution

The fourth proportional to 367,572.20, 551,358.30 and 145,956.20 is: 218,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,572.20 : 551,358.30 = 145,956.20 : x
  2. Step 2: Convert to fraction form
    367,572.20/551,358.30 = 145,956.20/x
  3. Step 3: Cross multiply
    367,572.20x = 551,358.30 × 145,956.20
  4. Step 4: Simplify right side
    367,572.20x = 80,474,162,306.46
  5. Step 5: Solve for x
    x = 80,474,162,306.46/367,572.20
  6. Step 6: Final answer
    x = 218,934.30

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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.