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Finding the Fourth Proportional to 335.40, 462.69 and 236.94

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Solution

The fourth proportional to 335.40, 462.69 and 236.94 is: 326.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.40 : 462.69 = 236.94 : x
  2. Step 2: Convert to fraction form
    335.40/462.69 = 236.94/x
  3. Step 3: Cross multiply
    335.40x = 462.69 × 236.94
  4. Step 4: Simplify right side
    335.40x = 109,629.77
  5. Step 5: Solve for x
    x = 109,629.77/335.40
  6. Step 6: Final answer
    x = 326.86

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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.