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Finding the Fourth Proportional to 522,545.66, 783,819.72 and 143,471.59

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Solution

The fourth proportional to 522,545.66, 783,819.72 and 143,471.59 is: 215,207.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,545.66 : 783,819.72 = 143,471.59 : x
  2. Step 2: Convert to fraction form
    522,545.66/783,819.72 = 143,471.59/x
  3. Step 3: Cross multiply
    522,545.66x = 783,819.72 × 143,471.59
  4. Step 4: Simplify right side
    522,545.66x = 112,455,857,586.20
  5. Step 5: Solve for x
    x = 112,455,857,586.20/522,545.66
  6. Step 6: Final answer
    x = 215,207.71

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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.