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Finding the Third Proportional to 312,138.50 and 467,352.75

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Solution

The third proportional to 312,138.50 and 467,352.75 is: 699,748.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,138.50 : 467,352.75 = 467,352.75 : x
  2. Step 2: Convert to fraction form
    312,138.50/467,352.75 = 467,352.75/x
  3. Step 3: Cross multiply
    312,138.50x = 467,352.75 × 467,352.75
  4. Step 4: Simplify right side
    312,138.50x = 218,418,592,932.56
  5. Step 5: Solve for x
    x = 218,418,592,932.56/312,138.50
  6. Step 6: Final answer
    x = 699,748.97

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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.