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Finding the Fourth Proportional to 1,049.22, 1,574.01 and 501.75

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Solution

The fourth proportional to 1,049.22, 1,574.01 and 501.75 is: 752.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.22 : 1,574.01 = 501.75 : x
  2. Step 2: Convert to fraction form
    1,049.22/1,574.01 = 501.75/x
  3. Step 3: Cross multiply
    1,049.22x = 1,574.01 × 501.75
  4. Step 4: Simplify right side
    1,049.22x = 789,759.52
  5. Step 5: Solve for x
    x = 789,759.52/1,049.22
  6. Step 6: Final answer
    x = 752.71

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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.