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Finding the Third Proportional to 267,638 and 366,991

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Solution

The third proportional to 267,638 and 366,991 is: 503,225.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,638 : 366,991 = 366,991 : x
  2. Step 2: Convert to fraction form
    267,638/366,991 = 366,991/x
  3. Step 3: Cross multiply
    267,638x = 366,991 × 366,991
  4. Step 4: Simplify right side
    267,638x = 134,682,394,081
  5. Step 5: Solve for x
    x = 134,682,394,081/267,638
  6. Step 6: Final answer
    x = 503,225.98

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.