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Finding the Fourth Proportional to 1,181.94, 1,772.91 and 531.92

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Solution

The fourth proportional to 1,181.94, 1,772.91 and 531.92 is: 797.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181.94 : 1,772.91 = 531.92 : x
  2. Step 2: Convert to fraction form
    1,181.94/1,772.91 = 531.92/x
  3. Step 3: Cross multiply
    1,181.94x = 1,772.91 × 531.92
  4. Step 4: Simplify right side
    1,181.94x = 943,046.29
  5. Step 5: Solve for x
    x = 943,046.29/1,181.94
  6. Step 6: Final answer
    x = 797.88

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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.