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Finding the Fourth Proportional to 1,158.26, 1,737.84 and 696.37

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Solution

The fourth proportional to 1,158.26, 1,737.84 and 696.37 is: 1,044.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158.26 : 1,737.84 = 696.37 : x
  2. Step 2: Convert to fraction form
    1,158.26/1,737.84 = 696.37/x
  3. Step 3: Cross multiply
    1,158.26x = 1,737.84 × 696.37
  4. Step 4: Simplify right side
    1,158.26x = 1,210,177.25
  5. Step 5: Solve for x
    x = 1,210,177.25/1,158.26
  6. Step 6: Final answer
    x = 1,044.82

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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.