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Finding the Fourth Proportional to 625,592.81, 864,035.43 and 411,687.74

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Solution

The fourth proportional to 625,592.81, 864,035.43 and 411,687.74 is: 568,601.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,592.81 : 864,035.43 = 411,687.74 : x
  2. Step 2: Convert to fraction form
    625,592.81/864,035.43 = 411,687.74/x
  3. Step 3: Cross multiply
    625,592.81x = 864,035.43 × 411,687.74
  4. Step 4: Simplify right side
    625,592.81x = 355,712,793,456.63
  5. Step 5: Solve for x
    x = 355,712,793,456.63/625,592.81
  6. Step 6: Final answer
    x = 568,601.15

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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.