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Finding the Fourth Proportional to 335.44, 462.61 and 230.55

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Solution

The fourth proportional to 335.44, 462.61 and 230.55 is: 317.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.44 : 462.61 = 230.55 : x
  2. Step 2: Convert to fraction form
    335.44/462.61 = 230.55/x
  3. Step 3: Cross multiply
    335.44x = 462.61 × 230.55
  4. Step 4: Simplify right side
    335.44x = 106,653.29
  5. Step 5: Solve for x
    x = 106,653.29/335.44
  6. Step 6: Final answer
    x = 317.95

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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.