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Finding the Third Proportional to 176,832 and 386,649

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Solution

The third proportional to 176,832 and 386,649 is: 845,420.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,832 : 386,649 = 386,649 : x
  2. Step 2: Convert to fraction form
    176,832/386,649 = 386,649/x
  3. Step 3: Cross multiply
    176,832x = 386,649 × 386,649
  4. Step 4: Simplify right side
    176,832x = 149,497,449,201
  5. Step 5: Solve for x
    x = 149,497,449,201/176,832
  6. Step 6: Final answer
    x = 845,420.79

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.