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Finding the Fourth Proportional to 334.96, 462.36 and 231.28

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Solution

The fourth proportional to 334.96, 462.36 and 231.28 is: 319.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.96 : 462.36 = 231.28 : x
  2. Step 2: Convert to fraction form
    334.96/462.36 = 231.28/x
  3. Step 3: Cross multiply
    334.96x = 462.36 × 231.28
  4. Step 4: Simplify right side
    334.96x = 106,934.62
  5. Step 5: Solve for x
    x = 106,934.62/334.96
  6. Step 6: Final answer
    x = 319.25

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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.