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Finding the Fourth Proportional to 266,711.20, 400,066.80 and 224,720.80

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Solution

The fourth proportional to 266,711.20, 400,066.80 and 224,720.80 is: 337,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,711.20 : 400,066.80 = 224,720.80 : x
  2. Step 2: Convert to fraction form
    266,711.20/400,066.80 = 224,720.80/x
  3. Step 3: Cross multiply
    266,711.20x = 400,066.80 × 224,720.80
  4. Step 4: Simplify right side
    266,711.20x = 89,903,331,349.44
  5. Step 5: Solve for x
    x = 89,903,331,349.44/266,711.20
  6. Step 6: Final answer
    x = 337,081.20

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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.