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Finding the Third Proportional to 423,842 and 635,762

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Solution

The third proportional to 423,842 and 635,762 is: 953,641.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,842 : 635,762 = 635,762 : x
  2. Step 2: Convert to fraction form
    423,842/635,762 = 635,762/x
  3. Step 3: Cross multiply
    423,842x = 635,762 × 635,762
  4. Step 4: Simplify right side
    423,842x = 404,193,320,644
  5. Step 5: Solve for x
    x = 404,193,320,644/423,842
  6. Step 6: Final answer
    x = 953,641.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.