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Finding the Third Proportional to 191,234 and 415,636

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Solution

The third proportional to 191,234 and 415,636 is: 903,360.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,234 : 415,636 = 415,636 : x
  2. Step 2: Convert to fraction form
    191,234/415,636 = 415,636/x
  3. Step 3: Cross multiply
    191,234x = 415,636 × 415,636
  4. Step 4: Simplify right side
    191,234x = 172,753,284,496
  5. Step 5: Solve for x
    x = 172,753,284,496/191,234
  6. Step 6: Final answer
    x = 903,360.72

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.