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Finding the Fourth Proportional to 363.62, 544.46 and 286.74

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Solution

The fourth proportional to 363.62, 544.46 and 286.74 is: 429.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.62 : 544.46 = 286.74 : x
  2. Step 2: Convert to fraction form
    363.62/544.46 = 286.74/x
  3. Step 3: Cross multiply
    363.62x = 544.46 × 286.74
  4. Step 4: Simplify right side
    363.62x = 156,115.74
  5. Step 5: Solve for x
    x = 156,115.74/363.62
  6. Step 6: Final answer
    x = 429.34

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