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Finding the Fourth Proportional to 441,799.20, 662,698.80 and 381,664.80

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Solution

The fourth proportional to 441,799.20, 662,698.80 and 381,664.80 is: 572,497.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,799.20 : 662,698.80 = 381,664.80 : x
  2. Step 2: Convert to fraction form
    441,799.20/662,698.80 = 381,664.80/x
  3. Step 3: Cross multiply
    441,799.20x = 662,698.80 × 381,664.80
  4. Step 4: Simplify right side
    441,799.20x = 252,928,804,962.24
  5. Step 5: Solve for x
    x = 252,928,804,962.24/441,799.20
  6. Step 6: Final answer
    x = 572,497.20

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Similar ratio
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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.