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Finding the Third Proportional to 392,047 and 552,099

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Solution

The third proportional to 392,047 and 552,099 is: 777,491.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,047 : 552,099 = 552,099 : x
  2. Step 2: Convert to fraction form
    392,047/552,099 = 552,099/x
  3. Step 3: Cross multiply
    392,047x = 552,099 × 552,099
  4. Step 4: Simplify right side
    392,047x = 304,813,305,801
  5. Step 5: Solve for x
    x = 304,813,305,801/392,047
  6. Step 6: Final answer
    x = 777,491.74

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.