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Finding the Fourth Proportional to 332,415.20, 498,331.20 and 199,348.40

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Solution

The fourth proportional to 332,415.20, 498,331.20 and 199,348.40 is: 298,847.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,415.20 : 498,331.20 = 199,348.40 : x
  2. Step 2: Convert to fraction form
    332,415.20/498,331.20 = 199,348.40/x
  3. Step 3: Cross multiply
    332,415.20x = 498,331.20 × 199,348.40
  4. Step 4: Simplify right side
    332,415.20x = 99,341,527,390.08
  5. Step 5: Solve for x
    x = 99,341,527,390.08/332,415.20
  6. Step 6: Final answer
    x = 298,847.73

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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.