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Finding the Third Proportional to 392,325 and 831,736

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Solution

The third proportional to 392,325 and 831,736 is: 1,763,295.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,325 : 831,736 = 831,736 : x
  2. Step 2: Convert to fraction form
    392,325/831,736 = 831,736/x
  3. Step 3: Cross multiply
    392,325x = 831,736 × 831,736
  4. Step 4: Simplify right side
    392,325x = 691,784,773,696
  5. Step 5: Solve for x
    x = 691,784,773,696/392,325
  6. Step 6: Final answer
    x = 1,763,295.16

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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.