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Finding the Fourth Proportional to 625,605.36, 938,313 and 204,871.92

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Solution

The fourth proportional to 625,605.36, 938,313 and 204,871.92 is: 307,276.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,605.36 : 938,313 = 204,871.92 : x
  2. Step 2: Convert to fraction form
    625,605.36/938,313 = 204,871.92/x
  3. Step 3: Cross multiply
    625,605.36x = 938,313 × 204,871.92
  4. Step 4: Simplify right side
    625,605.36x = 192,233,985,870.96
  5. Step 5: Solve for x
    x = 192,233,985,870.96/625,605.36
  6. Step 6: Final answer
    x = 307,276.76

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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.