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Finding the Fourth Proportional to 548.48, 757.08 and 327.48

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Solution

The fourth proportional to 548.48, 757.08 and 327.48 is: 452.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.48 : 757.08 = 327.48 : x
  2. Step 2: Convert to fraction form
    548.48/757.08 = 327.48/x
  3. Step 3: Cross multiply
    548.48x = 757.08 × 327.48
  4. Step 4: Simplify right side
    548.48x = 247,928.56
  5. Step 5: Solve for x
    x = 247,928.56/548.48
  6. Step 6: Final answer
    x = 452.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.