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Finding the Third Proportional to 181,500 and 394,491

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Solution

The third proportional to 181,500 and 394,491 is: 857,427.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,500 : 394,491 = 394,491 : x
  2. Step 2: Convert to fraction form
    181,500/394,491 = 394,491/x
  3. Step 3: Cross multiply
    181,500x = 394,491 × 394,491
  4. Step 4: Simplify right side
    181,500x = 155,623,149,081
  5. Step 5: Solve for x
    x = 155,623,149,081/181,500
  6. Step 6: Final answer
    x = 857,427.82

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.