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Finding the Fourth Proportional to 1,049.74, 1,448.64 and 583.99

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Solution

The fourth proportional to 1,049.74, 1,448.64 and 583.99 is: 805.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.74 : 1,448.64 = 583.99 : x
  2. Step 2: Convert to fraction form
    1,049.74/1,448.64 = 583.99/x
  3. Step 3: Cross multiply
    1,049.74x = 1,448.64 × 583.99
  4. Step 4: Simplify right side
    1,049.74x = 845,991.27
  5. Step 5: Solve for x
    x = 845,991.27/1,049.74
  6. Step 6: Final answer
    x = 805.91

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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.