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Finding the Third Proportional to 197,926 and 415,295

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Solution

The third proportional to 197,926 and 415,295 is: 871,385.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,926 : 415,295 = 415,295 : x
  2. Step 2: Convert to fraction form
    197,926/415,295 = 415,295/x
  3. Step 3: Cross multiply
    197,926x = 415,295 × 415,295
  4. Step 4: Simplify right side
    197,926x = 172,469,937,025
  5. Step 5: Solve for x
    x = 172,469,937,025/197,926
  6. Step 6: Final answer
    x = 871,385.96

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.