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Finding the Fourth Proportional to 967.14, 1,450.71 and 726.57

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Solution

The fourth proportional to 967.14, 1,450.71 and 726.57 is: 1,089.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.14 : 1,450.71 = 726.57 : x
  2. Step 2: Convert to fraction form
    967.14/1,450.71 = 726.57/x
  3. Step 3: Cross multiply
    967.14x = 1,450.71 × 726.57
  4. Step 4: Simplify right side
    967.14x = 1,054,042.36
  5. Step 5: Solve for x
    x = 1,054,042.36/967.14
  6. Step 6: Final answer
    x = 1,089.86

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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.