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Finding the Fourth Proportional to 516,841.20, 773,706.60 and 454,633.20

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Solution

The fourth proportional to 516,841.20, 773,706.60 and 454,633.20 is: 680,581.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,841.20 : 773,706.60 = 454,633.20 : x
  2. Step 2: Convert to fraction form
    516,841.20/773,706.60 = 454,633.20/x
  3. Step 3: Cross multiply
    516,841.20x = 773,706.60 × 454,633.20
  4. Step 4: Simplify right side
    516,841.20x = 351,752,707,419.12
  5. Step 5: Solve for x
    x = 351,752,707,419.12/516,841.20
  6. Step 6: Final answer
    x = 680,581.79

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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.