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Finding the Fourth Proportional to 967.11, 1,450.67 and 454.47

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Solution

The fourth proportional to 967.11, 1,450.67 and 454.47 is: 681.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.11 : 1,450.67 = 454.47 : x
  2. Step 2: Convert to fraction form
    967.11/1,450.67 = 454.47/x
  3. Step 3: Cross multiply
    967.11x = 1,450.67 × 454.47
  4. Step 4: Simplify right side
    967.11x = 659,283.72
  5. Step 5: Solve for x
    x = 659,283.72/967.11
  6. Step 6: Final answer
    x = 681.71

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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.