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Finding the Fourth Proportional to 1,723.92, 2,584.46 and 683.48

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Solution

The fourth proportional to 1,723.92, 2,584.46 and 683.48 is: 1,024.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.92 : 2,584.46 = 683.48 : x
  2. Step 2: Convert to fraction form
    1,723.92/2,584.46 = 683.48/x
  3. Step 3: Cross multiply
    1,723.92x = 2,584.46 × 683.48
  4. Step 4: Simplify right side
    1,723.92x = 1,766,426.72
  5. Step 5: Solve for x
    x = 1,766,426.72/1,723.92
  6. Step 6: Final answer
    x = 1,024.66

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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.