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Finding the Fourth Proportional to 332,879.20, 499,027.20 and 199,812.40

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Solution

The fourth proportional to 332,879.20, 499,027.20 and 199,812.40 is: 299,543.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,879.20 : 499,027.20 = 199,812.40 : x
  2. Step 2: Convert to fraction form
    332,879.20/499,027.20 = 199,812.40/x
  3. Step 3: Cross multiply
    332,879.20x = 499,027.20 × 199,812.40
  4. Step 4: Simplify right side
    332,879.20x = 99,711,822,497.28
  5. Step 5: Solve for x
    x = 99,711,822,497.28/332,879.20
  6. Step 6: Final answer
    x = 299,543.57

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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.