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Finding the Fourth Proportional to 363.31, 501.42 and 239.16

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Solution

The fourth proportional to 363.31, 501.42 and 239.16 is: 330.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.31 : 501.42 = 239.16 : x
  2. Step 2: Convert to fraction form
    363.31/501.42 = 239.16/x
  3. Step 3: Cross multiply
    363.31x = 501.42 × 239.16
  4. Step 4: Simplify right side
    363.31x = 119,917.10
  5. Step 5: Solve for x
    x = 119,917.10/363.31
  6. Step 6: Final answer
    x = 330.07

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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.