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Finding the Third Proportional to 624,395 and 929,680

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Solution

The third proportional to 624,395 and 929,680 is: 1,384,227.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,395 : 929,680 = 929,680 : x
  2. Step 2: Convert to fraction form
    624,395/929,680 = 929,680/x
  3. Step 3: Cross multiply
    624,395x = 929,680 × 929,680
  4. Step 4: Simplify right side
    624,395x = 864,304,902,400
  5. Step 5: Solve for x
    x = 864,304,902,400/624,395
  6. Step 6: Final answer
    x = 1,384,227.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.