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Finding the Fourth Proportional to 543,446.20, 813,614.10 and 481,238.20

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Solution

The fourth proportional to 543,446.20, 813,614.10 and 481,238.20 is: 720,480.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,446.20 : 813,614.10 = 481,238.20 : x
  2. Step 2: Convert to fraction form
    543,446.20/813,614.10 = 481,238.20/x
  3. Step 3: Cross multiply
    543,446.20x = 813,614.10 × 481,238.20
  4. Step 4: Simplify right side
    543,446.20x = 391,542,184,978.62
  5. Step 5: Solve for x
    x = 391,542,184,978.62/543,446.20
  6. Step 6: Final answer
    x = 720,480.12

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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.