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Finding the Fourth Proportional to 441,680.95, 661,213.54 and 272,657.80

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Solution

The fourth proportional to 441,680.95, 661,213.54 and 272,657.80 is: 408,179.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,680.95 : 661,213.54 = 272,657.80 : x
  2. Step 2: Convert to fraction form
    441,680.95/661,213.54 = 272,657.80/x
  3. Step 3: Cross multiply
    441,680.95x = 661,213.54 × 272,657.80
  4. Step 4: Simplify right side
    441,680.95x = 180,285,029,146.61
  5. Step 5: Solve for x
    x = 180,285,029,146.61/441,680.95
  6. Step 6: Final answer
    x = 408,179.32

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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.