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Finding the Third Proportional to 370.50 and 667

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Solution

The third proportional to 370.50 and 667 is: 1,200.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.50 : 667 = 667 : x
  2. Step 2: Convert to fraction form
    370.50/667 = 667/x
  3. Step 3: Cross multiply
    370.50x = 667 × 667
  4. Step 4: Simplify right side
    370.50x = 444,889
  5. Step 5: Solve for x
    x = 444,889/370.50
  6. Step 6: Final answer
    x = 1,200.78

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Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.