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Finding the Third Proportional to 267,966 and 426,549

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Solution

The third proportional to 267,966 and 426,549 is: 678,981.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,966 : 426,549 = 426,549 : x
  2. Step 2: Convert to fraction form
    267,966/426,549 = 426,549/x
  3. Step 3: Cross multiply
    267,966x = 426,549 × 426,549
  4. Step 4: Simplify right side
    267,966x = 181,944,049,401
  5. Step 5: Solve for x
    x = 181,944,049,401/267,966
  6. Step 6: Final answer
    x = 678,981.85

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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.