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Finding the Third Proportional to 207,542 and 311,314

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Solution

The third proportional to 207,542 and 311,314 is: 466,972.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,542 : 311,314 = 311,314 : x
  2. Step 2: Convert to fraction form
    207,542/311,314 = 311,314/x
  3. Step 3: Cross multiply
    207,542x = 311,314 × 311,314
  4. Step 4: Simplify right side
    207,542x = 96,916,406,596
  5. Step 5: Solve for x
    x = 96,916,406,596/207,542
  6. Step 6: Final answer
    x = 466,972.50

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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.