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Finding the Fourth Proportional to 2,473.74, 3,710.61 and 718.85

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Solution

The fourth proportional to 2,473.74, 3,710.61 and 718.85 is: 1,078.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,473.74 : 3,710.61 = 718.85 : x
  2. Step 2: Convert to fraction form
    2,473.74/3,710.61 = 718.85/x
  3. Step 3: Cross multiply
    2,473.74x = 3,710.61 × 718.85
  4. Step 4: Simplify right side
    2,473.74x = 2,667,381.28
  5. Step 5: Solve for x
    x = 2,667,381.28/2,473.74
  6. Step 6: Final answer
    x = 1,078.28

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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.