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Finding the Fourth Proportional to 967.14, 1,451.07 and 382.43

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Solution

The fourth proportional to 967.14, 1,451.07 and 382.43 is: 573.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.14 : 1,451.07 = 382.43 : x
  2. Step 2: Convert to fraction form
    967.14/1,451.07 = 382.43/x
  3. Step 3: Cross multiply
    967.14x = 1,451.07 × 382.43
  4. Step 4: Simplify right side
    967.14x = 554,925.44
  5. Step 5: Solve for x
    x = 554,925.44/967.14
  6. Step 6: Final answer
    x = 573.78

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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.