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Finding the Fourth Proportional to 2,479.83, 3,718.86 and 724.33

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Solution

The fourth proportional to 2,479.83, 3,718.86 and 724.33 is: 1,086.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.83 : 3,718.86 = 724.33 : x
  2. Step 2: Convert to fraction form
    2,479.83/3,718.86 = 724.33/x
  3. Step 3: Cross multiply
    2,479.83x = 3,718.86 × 724.33
  4. Step 4: Simplify right side
    2,479.83x = 2,693,681.86
  5. Step 5: Solve for x
    x = 2,693,681.86/2,479.83
  6. Step 6: Final answer
    x = 1,086.24

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.