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Finding the Fourth Proportional to 333.96, 460.90 and 217.48

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Solution

The fourth proportional to 333.96, 460.90 and 217.48 is: 300.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.96 : 460.90 = 217.48 : x
  2. Step 2: Convert to fraction form
    333.96/460.90 = 217.48/x
  3. Step 3: Cross multiply
    333.96x = 460.90 × 217.48
  4. Step 4: Simplify right side
    333.96x = 100,236.53
  5. Step 5: Solve for x
    x = 100,236.53/333.96
  6. Step 6: Final answer
    x = 300.15

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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.