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Finding the Fourth Proportional to 696,591.48, 961,401.28 and 424,817

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Solution

The fourth proportional to 696,591.48, 961,401.28 and 424,817 is: 586,311.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,591.48 : 961,401.28 = 424,817 : x
  2. Step 2: Convert to fraction form
    696,591.48/961,401.28 = 424,817/x
  3. Step 3: Cross multiply
    696,591.48x = 961,401.28 × 424,817
  4. Step 4: Simplify right side
    696,591.48x = 408,419,607,565.76
  5. Step 5: Solve for x
    x = 408,419,607,565.76/696,591.48
  6. Step 6: Final answer
    x = 586,311.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.