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Finding the Third Proportional to 170,849 and 399,177

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Solution

The third proportional to 170,849 and 399,177 is: 932,649.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,849 : 399,177 = 399,177 : x
  2. Step 2: Convert to fraction form
    170,849/399,177 = 399,177/x
  3. Step 3: Cross multiply
    170,849x = 399,177 × 399,177
  4. Step 4: Simplify right side
    170,849x = 159,342,277,329
  5. Step 5: Solve for x
    x = 159,342,277,329/170,849
  6. Step 6: Final answer
    x = 932,649.75

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.