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Finding the Fourth Proportional to 335.58, 462.94 and 211.18

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Solution

The fourth proportional to 335.58, 462.94 and 211.18 is: 291.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.58 : 462.94 = 211.18 : x
  2. Step 2: Convert to fraction form
    335.58/462.94 = 211.18/x
  3. Step 3: Cross multiply
    335.58x = 462.94 × 211.18
  4. Step 4: Simplify right side
    335.58x = 97,763.67
  5. Step 5: Solve for x
    x = 97,763.67/335.58
  6. Step 6: Final answer
    x = 291.33

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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.