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Finding the Third Proportional to 247,676 and 542,816

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Solution

The third proportional to 247,676 and 542,816 is: 1,189,655.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,676 : 542,816 = 542,816 : x
  2. Step 2: Convert to fraction form
    247,676/542,816 = 542,816/x
  3. Step 3: Cross multiply
    247,676x = 542,816 × 542,816
  4. Step 4: Simplify right side
    247,676x = 294,649,209,856
  5. Step 5: Solve for x
    x = 294,649,209,856/247,676
  6. Step 6: Final answer
    x = 1,189,655.88

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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.