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Finding the Third Proportional to 392,936 and 591,702

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Solution

The third proportional to 392,936 and 591,702 is: 891,013.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,936 : 591,702 = 591,702 : x
  2. Step 2: Convert to fraction form
    392,936/591,702 = 591,702/x
  3. Step 3: Cross multiply
    392,936x = 591,702 × 591,702
  4. Step 4: Simplify right side
    392,936x = 350,111,256,804
  5. Step 5: Solve for x
    x = 350,111,256,804/392,936
  6. Step 6: Final answer
    x = 891,013.44

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.