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Finding the Third Proportional to 327.50 and 492

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Solution

The third proportional to 327.50 and 492 is: 739.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.50 : 492 = 492 : x
  2. Step 2: Convert to fraction form
    327.50/492 = 492/x
  3. Step 3: Cross multiply
    327.50x = 492 × 492
  4. Step 4: Simplify right side
    327.50x = 242,064
  5. Step 5: Solve for x
    x = 242,064/327.50
  6. Step 6: Final answer
    x = 739.13

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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.