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Finding the Fourth Proportional to 2,473.79, 3,711.24 and 718.83

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Solution

The fourth proportional to 2,473.79, 3,711.24 and 718.83 is: 1,078.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,473.79 : 3,711.24 = 718.83 : x
  2. Step 2: Convert to fraction form
    2,473.79/3,711.24 = 718.83/x
  3. Step 3: Cross multiply
    2,473.79x = 3,711.24 × 718.83
  4. Step 4: Simplify right side
    2,473.79x = 2,667,750.65
  5. Step 5: Solve for x
    x = 2,667,750.65/2,473.79
  6. Step 6: Final answer
    x = 1,078.41

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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.