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Finding the Fourth Proportional to 339.92, 469.24 and 252.44

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Solution

The fourth proportional to 339.92, 469.24 and 252.44 is: 348.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.92 : 469.24 = 252.44 : x
  2. Step 2: Convert to fraction form
    339.92/469.24 = 252.44/x
  3. Step 3: Cross multiply
    339.92x = 469.24 × 252.44
  4. Step 4: Simplify right side
    339.92x = 118,454.95
  5. Step 5: Solve for x
    x = 118,454.95/339.92
  6. Step 6: Final answer
    x = 348.48

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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.