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Finding the Fourth Proportional to 1,174.64, 1,759.96 and 803.92

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Solution

The fourth proportional to 1,174.64, 1,759.96 and 803.92 is: 1,204.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.64 : 1,759.96 = 803.92 : x
  2. Step 2: Convert to fraction form
    1,174.64/1,759.96 = 803.92/x
  3. Step 3: Cross multiply
    1,174.64x = 1,759.96 × 803.92
  4. Step 4: Simplify right side
    1,174.64x = 1,414,867.04
  5. Step 5: Solve for x
    x = 1,414,867.04/1,174.64
  6. Step 6: Final answer
    x = 1,204.51

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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.