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Finding the Third Proportional to 392,872 and 860,048

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Solution

The third proportional to 392,872 and 860,048 is: 1,882,757.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,872 : 860,048 = 860,048 : x
  2. Step 2: Convert to fraction form
    392,872/860,048 = 860,048/x
  3. Step 3: Cross multiply
    392,872x = 860,048 × 860,048
  4. Step 4: Simplify right side
    392,872x = 739,682,562,304
  5. Step 5: Solve for x
    x = 739,682,562,304/392,872
  6. Step 6: Final answer
    x = 1,882,757.14

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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.