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Finding the Fourth Proportional to 1,463.08, 2,019.30 and 842.44

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Solution

The fourth proportional to 1,463.08, 2,019.30 and 842.44 is: 1,162.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,463.08 : 2,019.30 = 842.44 : x
  2. Step 2: Convert to fraction form
    1,463.08/2,019.30 = 842.44/x
  3. Step 3: Cross multiply
    1,463.08x = 2,019.30 × 842.44
  4. Step 4: Simplify right side
    1,463.08x = 1,701,139.09
  5. Step 5: Solve for x
    x = 1,701,139.09/1,463.08
  6. Step 6: Final answer
    x = 1,162.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.