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Finding the Fourth Proportional to 1,049.26, 1,448 and 583.54

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Solution

The fourth proportional to 1,049.26, 1,448 and 583.54 is: 805.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.26 : 1,448 = 583.54 : x
  2. Step 2: Convert to fraction form
    1,049.26/1,448 = 583.54/x
  3. Step 3: Cross multiply
    1,049.26x = 1,448 × 583.54
  4. Step 4: Simplify right side
    1,049.26x = 844,965.92
  5. Step 5: Solve for x
    x = 844,965.92/1,049.26
  6. Step 6: Final answer
    x = 805.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.