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Finding the Fourth Proportional to 1,183.15, 1,774.32 and 349.97

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Solution

The fourth proportional to 1,183.15, 1,774.32 and 349.97 is: 524.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.15 : 1,774.32 = 349.97 : x
  2. Step 2: Convert to fraction form
    1,183.15/1,774.32 = 349.97/x
  3. Step 3: Cross multiply
    1,183.15x = 1,774.32 × 349.97
  4. Step 4: Simplify right side
    1,183.15x = 620,948.59
  5. Step 5: Solve for x
    x = 620,948.59/1,183.15
  6. Step 6: Final answer
    x = 524.83

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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.