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Finding the Fourth Proportional to 963.55, 1,446.48 and 755.95

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Solution

The fourth proportional to 963.55, 1,446.48 and 755.95 is: 1,134.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    963.55 : 1,446.48 = 755.95 : x
  2. Step 2: Convert to fraction form
    963.55/1,446.48 = 755.95/x
  3. Step 3: Cross multiply
    963.55x = 1,446.48 × 755.95
  4. Step 4: Simplify right side
    963.55x = 1,093,466.56
  5. Step 5: Solve for x
    x = 1,093,466.56/963.55
  6. Step 6: Final answer
    x = 1,134.83

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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.