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Finding the Fourth Proportional to 1,231.58, 1,844.53 and 797.42

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Solution

The fourth proportional to 1,231.58, 1,844.53 and 797.42 is: 1,194.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.58 : 1,844.53 = 797.42 : x
  2. Step 2: Convert to fraction form
    1,231.58/1,844.53 = 797.42/x
  3. Step 3: Cross multiply
    1,231.58x = 1,844.53 × 797.42
  4. Step 4: Simplify right side
    1,231.58x = 1,470,865.11
  5. Step 5: Solve for x
    x = 1,470,865.11/1,231.58
  6. Step 6: Final answer
    x = 1,194.29

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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.