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Finding the Fourth Proportional to 297,787.20, 445,903.20 and 192,033.60

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Solution

The fourth proportional to 297,787.20, 445,903.20 and 192,033.60 is: 287,548.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,787.20 : 445,903.20 = 192,033.60 : x
  2. Step 2: Convert to fraction form
    297,787.20/445,903.20 = 192,033.60/x
  3. Step 3: Cross multiply
    297,787.20x = 445,903.20 × 192,033.60
  4. Step 4: Simplify right side
    297,787.20x = 85,628,396,747.52
  5. Step 5: Solve for x
    x = 85,628,396,747.52/297,787.20
  6. Step 6: Final answer
    x = 287,548.95

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1.5x scale

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.