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Finding the Fourth Proportional to 1,167.66, 1,750.68 and 550.85

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Solution

The fourth proportional to 1,167.66, 1,750.68 and 550.85 is: 825.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.66 : 1,750.68 = 550.85 : x
  2. Step 2: Convert to fraction form
    1,167.66/1,750.68 = 550.85/x
  3. Step 3: Cross multiply
    1,167.66x = 1,750.68 × 550.85
  4. Step 4: Simplify right side
    1,167.66x = 964,353.32
  5. Step 5: Solve for x
    x = 964,353.32/1,167.66
  6. Step 6: Final answer
    x = 825.89

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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.