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Finding the Third Proportional to 392,324 and 831,725

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Solution

The third proportional to 392,324 and 831,725 is: 1,763,253.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,324 : 831,725 = 831,725 : x
  2. Step 2: Convert to fraction form
    392,324/831,725 = 831,725/x
  3. Step 3: Cross multiply
    392,324x = 831,725 × 831,725
  4. Step 4: Simplify right side
    392,324x = 691,766,475,625
  5. Step 5: Solve for x
    x = 691,766,475,625/392,324
  6. Step 6: Final answer
    x = 1,763,253.01

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.