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Finding the Third Proportional to 187,401 and 396,537

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Solution

The third proportional to 187,401 and 396,537 is: 839,064.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,401 : 396,537 = 396,537 : x
  2. Step 2: Convert to fraction form
    187,401/396,537 = 396,537/x
  3. Step 3: Cross multiply
    187,401x = 396,537 × 396,537
  4. Step 4: Simplify right side
    187,401x = 157,241,592,369
  5. Step 5: Solve for x
    x = 157,241,592,369/187,401
  6. Step 6: Final answer
    x = 839,064.85

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.