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Finding the Fourth Proportional to 362.08, 543.60 and 217.92

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Solution

The fourth proportional to 362.08, 543.60 and 217.92 is: 327.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.08 : 543.60 = 217.92 : x
  2. Step 2: Convert to fraction form
    362.08/543.60 = 217.92/x
  3. Step 3: Cross multiply
    362.08x = 543.60 × 217.92
  4. Step 4: Simplify right side
    362.08x = 118,461.31
  5. Step 5: Solve for x
    x = 118,461.31/362.08
  6. Step 6: Final answer
    x = 327.17

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.