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Finding the Fourth Proportional to 2,331.94, 3,497.96 and 688.52

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Solution

The fourth proportional to 2,331.94, 3,497.96 and 688.52 is: 1,032.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.94 : 3,497.96 = 688.52 : x
  2. Step 2: Convert to fraction form
    2,331.94/3,497.96 = 688.52/x
  3. Step 3: Cross multiply
    2,331.94x = 3,497.96 × 688.52
  4. Step 4: Simplify right side
    2,331.94x = 2,408,411.98
  5. Step 5: Solve for x
    x = 2,408,411.98/2,331.94
  6. Step 6: Final answer
    x = 1,032.79

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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.