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Finding the Fourth Proportional to 334.94, 462.39 and 231.26

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Solution

The fourth proportional to 334.94, 462.39 and 231.26 is: 319.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.94 : 462.39 = 231.26 : x
  2. Step 2: Convert to fraction form
    334.94/462.39 = 231.26/x
  3. Step 3: Cross multiply
    334.94x = 462.39 × 231.26
  4. Step 4: Simplify right side
    334.94x = 106,932.31
  5. Step 5: Solve for x
    x = 106,932.31/334.94
  6. Step 6: Final answer
    x = 319.26

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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.