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Finding the Third Proportional to 192,817 and 417,812

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Solution

The third proportional to 192,817 and 417,812 is: 905,349.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,817 : 417,812 = 417,812 : x
  2. Step 2: Convert to fraction form
    192,817/417,812 = 417,812/x
  3. Step 3: Cross multiply
    192,817x = 417,812 × 417,812
  4. Step 4: Simplify right side
    192,817x = 174,566,867,344
  5. Step 5: Solve for x
    x = 174,566,867,344/192,817
  6. Step 6: Final answer
    x = 905,349.98

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.