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Finding the Third Proportional to 262,086 and 392,718

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Solution

The third proportional to 262,086 and 392,718 is: 588,461.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,086 : 392,718 = 392,718 : x
  2. Step 2: Convert to fraction form
    262,086/392,718 = 392,718/x
  3. Step 3: Cross multiply
    262,086x = 392,718 × 392,718
  4. Step 4: Simplify right side
    262,086x = 154,227,427,524
  5. Step 5: Solve for x
    x = 154,227,427,524/262,086
  6. Step 6: Final answer
    x = 588,461.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.