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Finding the Fourth Proportional to 609,545.80, 911,726.70 and 546,819.40

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Solution

The fourth proportional to 609,545.80, 911,726.70 and 546,819.40 is: 817,903.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,545.80 : 911,726.70 = 546,819.40 : x
  2. Step 2: Convert to fraction form
    609,545.80/911,726.70 = 546,819.40/x
  3. Step 3: Cross multiply
    609,545.80x = 911,726.70 × 546,819.40
  4. Step 4: Simplify right side
    609,545.80x = 498,549,847,057.98
  5. Step 5: Solve for x
    x = 498,549,847,057.98/609,545.80
  6. Step 6: Final answer
    x = 817,903.83

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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.