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Finding the Third Proportional to 386,644 and 591,522

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Solution

The third proportional to 386,644 and 591,522 is: 904,962.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,644 : 591,522 = 591,522 : x
  2. Step 2: Convert to fraction form
    386,644/591,522 = 591,522/x
  3. Step 3: Cross multiply
    386,644x = 591,522 × 591,522
  4. Step 4: Simplify right side
    386,644x = 349,898,276,484
  5. Step 5: Solve for x
    x = 349,898,276,484/386,644
  6. Step 6: Final answer
    x = 904,962.39

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.