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Finding the Fourth Proportional to 228,846.87, 315,696.49 and 198,589.73

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Solution

The fourth proportional to 228,846.87, 315,696.49 and 198,589.73 is: 273,956.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,846.87 : 315,696.49 = 198,589.73 : x
  2. Step 2: Convert to fraction form
    228,846.87/315,696.49 = 198,589.73/x
  3. Step 3: Cross multiply
    228,846.87x = 315,696.49 × 198,589.73
  4. Step 4: Simplify right side
    228,846.87x = 62,694,078,636.09
  5. Step 5: Solve for x
    x = 62,694,078,636.09/228,846.87
  6. Step 6: Final answer
    x = 273,956.46

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1.5x scale

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.