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Finding the Fourth Proportional to 1,049.76, 1,448.46 and 583.92

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Solution

The fourth proportional to 1,049.76, 1,448.46 and 583.92 is: 805.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.76 : 1,448.46 = 583.92 : x
  2. Step 2: Convert to fraction form
    1,049.76/1,448.46 = 583.92/x
  3. Step 3: Cross multiply
    1,049.76x = 1,448.46 × 583.92
  4. Step 4: Simplify right side
    1,049.76x = 845,784.76
  5. Step 5: Solve for x
    x = 845,784.76/1,049.76
  6. Step 6: Final answer
    x = 805.69

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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.