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Finding the Fourth Proportional to 462,092.28, 691,561.35 and 387,296.88

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Solution

The fourth proportional to 462,092.28, 691,561.35 and 387,296.88 is: 579,623.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,092.28 : 691,561.35 = 387,296.88 : x
  2. Step 2: Convert to fraction form
    462,092.28/691,561.35 = 387,296.88/x
  3. Step 3: Cross multiply
    462,092.28x = 691,561.35 × 387,296.88
  4. Step 4: Simplify right side
    462,092.28x = 267,839,553,183.59
  5. Step 5: Solve for x
    x = 267,839,553,183.59/462,092.28
  6. Step 6: Final answer
    x = 579,623.52

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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.