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Finding the Fourth Proportional to 1,716.67, 2,574.61 and 484.20

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Solution

The fourth proportional to 1,716.67, 2,574.61 and 484.20 is: 726.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.67 : 2,574.61 = 484.20 : x
  2. Step 2: Convert to fraction form
    1,716.67/2,574.61 = 484.20/x
  3. Step 3: Cross multiply
    1,716.67x = 2,574.61 × 484.20
  4. Step 4: Simplify right side
    1,716.67x = 1,246,626.16
  5. Step 5: Solve for x
    x = 1,246,626.16/1,716.67
  6. Step 6: Final answer
    x = 726.19

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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.