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Finding the Fourth Proportional to 2,327.94, 3,491.10 and 684.54

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Solution

The fourth proportional to 2,327.94, 3,491.10 and 684.54 is: 1,026.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,327.94 : 3,491.10 = 684.54 : x
  2. Step 2: Convert to fraction form
    2,327.94/3,491.10 = 684.54/x
  3. Step 3: Cross multiply
    2,327.94x = 3,491.10 × 684.54
  4. Step 4: Simplify right side
    2,327.94x = 2,389,797.59
  5. Step 5: Solve for x
    x = 2,389,797.59/2,327.94
  6. Step 6: Final answer
    x = 1,026.57

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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.