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Finding the Fourth Proportional to 333.62, 499.62 and 217.74

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Solution

The fourth proportional to 333.62, 499.62 and 217.74 is: 326.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.62 : 499.62 = 217.74 : x
  2. Step 2: Convert to fraction form
    333.62/499.62 = 217.74/x
  3. Step 3: Cross multiply
    333.62x = 499.62 × 217.74
  4. Step 4: Simplify right side
    333.62x = 108,787.26
  5. Step 5: Solve for x
    x = 108,787.26/333.62
  6. Step 6: Final answer
    x = 326.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.