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Finding the Fourth Proportional to 963.99, 1,447.75 and 882.66

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Solution

The fourth proportional to 963.99, 1,447.75 and 882.66 is: 1,325.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    963.99 : 1,447.75 = 882.66 : x
  2. Step 2: Convert to fraction form
    963.99/1,447.75 = 882.66/x
  3. Step 3: Cross multiply
    963.99x = 1,447.75 × 882.66
  4. Step 4: Simplify right side
    963.99x = 1,277,868.96
  5. Step 5: Solve for x
    x = 1,277,868.96/963.99
  6. Step 6: Final answer
    x = 1,325.61

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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.