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Finding the Fourth Proportional to 335.35, 462.84 and 211.06

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Solution

The fourth proportional to 335.35, 462.84 and 211.06 is: 291.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.35 : 462.84 = 211.06 : x
  2. Step 2: Convert to fraction form
    335.35/462.84 = 211.06/x
  3. Step 3: Cross multiply
    335.35x = 462.84 × 211.06
  4. Step 4: Simplify right side
    335.35x = 97,687.01
  5. Step 5: Solve for x
    x = 97,687.01/335.35
  6. Step 6: Final answer
    x = 291.30

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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.