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Finding the Fourth Proportional to 963.34, 1,446.44 and 788.18

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Solution

The fourth proportional to 963.34, 1,446.44 and 788.18 is: 1,183.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    963.34 : 1,446.44 = 788.18 : x
  2. Step 2: Convert to fraction form
    963.34/1,446.44 = 788.18/x
  3. Step 3: Cross multiply
    963.34x = 1,446.44 × 788.18
  4. Step 4: Simplify right side
    963.34x = 1,140,043.91
  5. Step 5: Solve for x
    x = 1,140,043.91/963.34
  6. Step 6: Final answer
    x = 1,183.43

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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.