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Finding the Fourth Proportional to 1,049.04, 1,447.70 and 576.99

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Solution

The fourth proportional to 1,049.04, 1,447.70 and 576.99 is: 796.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.04 : 1,447.70 = 576.99 : x
  2. Step 2: Convert to fraction form
    1,049.04/1,447.70 = 576.99/x
  3. Step 3: Cross multiply
    1,049.04x = 1,447.70 × 576.99
  4. Step 4: Simplify right side
    1,049.04x = 835,305.54
  5. Step 5: Solve for x
    x = 835,305.54/1,049.04
  6. Step 6: Final answer
    x = 796.26

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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.