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Finding the Third Proportional to 386,866 and 591,748

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Solution

The third proportional to 386,866 and 591,748 is: 905,134.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,866 : 591,748 = 591,748 : x
  2. Step 2: Convert to fraction form
    386,866/591,748 = 591,748/x
  3. Step 3: Cross multiply
    386,866x = 591,748 × 591,748
  4. Step 4: Simplify right side
    386,866x = 350,165,695,504
  5. Step 5: Solve for x
    x = 350,165,695,504/386,866
  6. Step 6: Final answer
    x = 905,134.32

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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.