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Finding the Third Proportional to 248,652 and 394,331

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Solution

The third proportional to 248,652 and 394,331 is: 625,359.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,652 : 394,331 = 394,331 : x
  2. Step 2: Convert to fraction form
    248,652/394,331 = 394,331/x
  3. Step 3: Cross multiply
    248,652x = 394,331 × 394,331
  4. Step 4: Simplify right side
    248,652x = 155,496,937,561
  5. Step 5: Solve for x
    x = 155,496,937,561/248,652
  6. Step 6: Final answer
    x = 625,359.69

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.