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Finding the Third Proportional to 267,098 and 413,021.50

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Solution

The third proportional to 267,098 and 413,021.50 is: 638,667.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,098 : 413,021.50 = 413,021.50 : x
  2. Step 2: Convert to fraction form
    267,098/413,021.50 = 413,021.50/x
  3. Step 3: Cross multiply
    267,098x = 413,021.50 × 413,021.50
  4. Step 4: Simplify right side
    267,098x = 170,586,759,462.25
  5. Step 5: Solve for x
    x = 170,586,759,462.25/267,098
  6. Step 6: Final answer
    x = 638,667.30

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.