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Finding the Third Proportional to 261,711 and 415,094

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Solution

The third proportional to 261,711 and 415,094 is: 658,371.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,711 : 415,094 = 415,094 : x
  2. Step 2: Convert to fraction form
    261,711/415,094 = 415,094/x
  3. Step 3: Cross multiply
    261,711x = 415,094 × 415,094
  4. Step 4: Simplify right side
    261,711x = 172,303,028,836
  5. Step 5: Solve for x
    x = 172,303,028,836/261,711
  6. Step 6: Final answer
    x = 658,371.37

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.