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Finding the Fourth Proportional to 1,737.92, 2,608.12 and 697.86

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Solution

The fourth proportional to 1,737.92, 2,608.12 and 697.86 is: 1,047.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,737.92 : 2,608.12 = 697.86 : x
  2. Step 2: Convert to fraction form
    1,737.92/2,608.12 = 697.86/x
  3. Step 3: Cross multiply
    1,737.92x = 2,608.12 × 697.86
  4. Step 4: Simplify right side
    1,737.92x = 1,820,102.62
  5. Step 5: Solve for x
    x = 1,820,102.62/1,737.92
  6. Step 6: Final answer
    x = 1,047.29

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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.