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Finding the Fourth Proportional to 548,940.44, 822,988.52 and 278,846.64

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Solution

The fourth proportional to 548,940.44, 822,988.52 and 278,846.64 is: 418,055.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,940.44 : 822,988.52 = 278,846.64 : x
  2. Step 2: Convert to fraction form
    548,940.44/822,988.52 = 278,846.64/x
  3. Step 3: Cross multiply
    548,940.44x = 822,988.52 × 278,846.64
  4. Step 4: Simplify right side
    548,940.44x = 229,487,583,560.57
  5. Step 5: Solve for x
    x = 229,487,583,560.57/548,940.44
  6. Step 6: Final answer
    x = 418,055.52

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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.