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Finding the Fourth Proportional to 798.46, 1,202.38 and 696.95

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Solution

The fourth proportional to 798.46, 1,202.38 and 696.95 is: 1,049.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    798.46 : 1,202.38 = 696.95 : x
  2. Step 2: Convert to fraction form
    798.46/1,202.38 = 696.95/x
  3. Step 3: Cross multiply
    798.46x = 1,202.38 × 696.95
  4. Step 4: Simplify right side
    798.46x = 837,998.74
  5. Step 5: Solve for x
    x = 837,998.74/798.46
  6. Step 6: Final answer
    x = 1,049.52

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.