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Finding the Fourth Proportional to 333.38, 496.72 and 314.75

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Solution

The fourth proportional to 333.38, 496.72 and 314.75 is: 468.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.38 : 496.72 = 314.75 : x
  2. Step 2: Convert to fraction form
    333.38/496.72 = 314.75/x
  3. Step 3: Cross multiply
    333.38x = 496.72 × 314.75
  4. Step 4: Simplify right side
    333.38x = 156,342.62
  5. Step 5: Solve for x
    x = 156,342.62/333.38
  6. Step 6: Final answer
    x = 468.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.