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Finding the Third Proportional to 238,872 and 361,396

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Solution

The third proportional to 238,872 and 361,396 is: 546,765.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,872 : 361,396 = 361,396 : x
  2. Step 2: Convert to fraction form
    238,872/361,396 = 361,396/x
  3. Step 3: Cross multiply
    238,872x = 361,396 × 361,396
  4. Step 4: Simplify right side
    238,872x = 130,607,068,816
  5. Step 5: Solve for x
    x = 130,607,068,816/238,872
  6. Step 6: Final answer
    x = 546,765.92

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.