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Finding the Fourth Proportional to 773.31, 1,158.68 and 567.96

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Solution

The fourth proportional to 773.31, 1,158.68 and 567.96 is: 850.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    773.31 : 1,158.68 = 567.96 : x
  2. Step 2: Convert to fraction form
    773.31/1,158.68 = 567.96/x
  3. Step 3: Cross multiply
    773.31x = 1,158.68 × 567.96
  4. Step 4: Simplify right side
    773.31x = 658,078.10
  5. Step 5: Solve for x
    x = 658,078.10/773.31
  6. Step 6: Final answer
    x = 850.99

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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.