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Finding the Fourth Proportional to 335.31, 462.84 and 235.77

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Solution

The fourth proportional to 335.31, 462.84 and 235.77 is: 325.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.31 : 462.84 = 235.77 : x
  2. Step 2: Convert to fraction form
    335.31/462.84 = 235.77/x
  3. Step 3: Cross multiply
    335.31x = 462.84 × 235.77
  4. Step 4: Simplify right side
    335.31x = 109,123.79
  5. Step 5: Solve for x
    x = 109,123.79/335.31
  6. Step 6: Final answer
    x = 325.44

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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.