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Finding the Fourth Proportional to 486,073.20, 729,109.80 and 466,390.20

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Solution

The fourth proportional to 486,073.20, 729,109.80 and 466,390.20 is: 699,585.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,073.20 : 729,109.80 = 466,390.20 : x
  2. Step 2: Convert to fraction form
    486,073.20/729,109.80 = 466,390.20/x
  3. Step 3: Cross multiply
    486,073.20x = 729,109.80 × 466,390.20
  4. Step 4: Simplify right side
    486,073.20x = 340,049,665,443.96
  5. Step 5: Solve for x
    x = 340,049,665,443.96/486,073.20
  6. Step 6: Final answer
    x = 699,585.30

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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.