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Finding the Fourth Proportional to 4,276, 6,414.36 and 1,198

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Solution

The fourth proportional to 4,276, 6,414.36 and 1,198 is: 1,797.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,276 : 6,414.36 = 1,198 : x
  2. Step 2: Convert to fraction form
    4,276/6,414.36 = 1,198/x
  3. Step 3: Cross multiply
    4,276x = 6,414.36 × 1,198
  4. Step 4: Simplify right side
    4,276x = 7,684,403.28
  5. Step 5: Solve for x
    x = 7,684,403.28/4,276
  6. Step 6: Final answer
    x = 1,797.10

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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.