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Finding the Fourth Proportional to 441,785.20, 662,677.80 and 381,650.80

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Solution

The fourth proportional to 441,785.20, 662,677.80 and 381,650.80 is: 572,476.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,785.20 : 662,677.80 = 381,650.80 : x
  2. Step 2: Convert to fraction form
    441,785.20/662,677.80 = 381,650.80/x
  3. Step 3: Cross multiply
    441,785.20x = 662,677.80 × 381,650.80
  4. Step 4: Simplify right side
    441,785.20x = 252,911,512,512.24
  5. Step 5: Solve for x
    x = 252,911,512,512.24/441,785.20
  6. Step 6: Final answer
    x = 572,476.20

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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.