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Finding the Fourth Proportional to 2,442.15, 3,663.19 and 798.69

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Solution

The fourth proportional to 2,442.15, 3,663.19 and 798.69 is: 1,198.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,442.15 : 3,663.19 = 798.69 : x
  2. Step 2: Convert to fraction form
    2,442.15/3,663.19 = 798.69/x
  3. Step 3: Cross multiply
    2,442.15x = 3,663.19 × 798.69
  4. Step 4: Simplify right side
    2,442.15x = 2,925,767.96
  5. Step 5: Solve for x
    x = 2,925,767.96/2,442.15
  6. Step 6: Final answer
    x = 1,198.03

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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.