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Finding the Fourth Proportional to 625,545, 938,490.30 and 182,313

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Solution

The fourth proportional to 625,545, 938,490.30 and 182,313 is: 273,519.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,545 : 938,490.30 = 182,313 : x
  2. Step 2: Convert to fraction form
    625,545/938,490.30 = 182,313/x
  3. Step 3: Cross multiply
    625,545x = 938,490.30 × 182,313
  4. Step 4: Simplify right side
    625,545x = 171,098,982,063.90
  5. Step 5: Solve for x
    x = 171,098,982,063.90/625,545
  6. Step 6: Final answer
    x = 273,519.86

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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.