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Finding the Third Proportional to 267,426 and 412,731

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Solution

The third proportional to 267,426 and 412,731 is: 636,986.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,426 : 412,731 = 412,731 : x
  2. Step 2: Convert to fraction form
    267,426/412,731 = 412,731/x
  3. Step 3: Cross multiply
    267,426x = 412,731 × 412,731
  4. Step 4: Simplify right side
    267,426x = 170,346,878,361
  5. Step 5: Solve for x
    x = 170,346,878,361/267,426
  6. Step 6: Final answer
    x = 636,986.97

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.