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Finding the Third Proportional to 191,055 and 415,279

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Solution

The third proportional to 191,055 and 415,279 is: 902,654.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,055 : 415,279 = 415,279 : x
  2. Step 2: Convert to fraction form
    191,055/415,279 = 415,279/x
  3. Step 3: Cross multiply
    191,055x = 415,279 × 415,279
  4. Step 4: Simplify right side
    191,055x = 172,456,647,841
  5. Step 5: Solve for x
    x = 172,456,647,841/191,055
  6. Step 6: Final answer
    x = 902,654.46

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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.