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Finding the Third Proportional to 327.94 and 502.31

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Solution

The third proportional to 327.94 and 502.31 is: 769.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.94 : 502.31 = 502.31 : x
  2. Step 2: Convert to fraction form
    327.94/502.31 = 502.31/x
  3. Step 3: Cross multiply
    327.94x = 502.31 × 502.31
  4. Step 4: Simplify right side
    327.94x = 252,317.85
  5. Step 5: Solve for x
    x = 252,317.85/327.94
  6. Step 6: Final answer
    x = 769.41

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.