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Finding the Fourth Proportional to 349.16, 481.86 and 232.64

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Solution

The fourth proportional to 349.16, 481.86 and 232.64 is: 321.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.16 : 481.86 = 232.64 : x
  2. Step 2: Convert to fraction form
    349.16/481.86 = 232.64/x
  3. Step 3: Cross multiply
    349.16x = 481.86 × 232.64
  4. Step 4: Simplify right side
    349.16x = 112,099.91
  5. Step 5: Solve for x
    x = 112,099.91/349.16
  6. Step 6: Final answer
    x = 321.06

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Why These Related Problems?

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