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Finding the Fourth Proportional to 548,769.76, 822,591.77 and 211,677.88

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Solution

The fourth proportional to 548,769.76, 822,591.77 and 211,677.88 is: 317,299.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,769.76 : 822,591.77 = 211,677.88 : x
  2. Step 2: Convert to fraction form
    548,769.76/822,591.77 = 211,677.88/x
  3. Step 3: Cross multiply
    548,769.76x = 822,591.77 × 211,677.88
  4. Step 4: Simplify right side
    548,769.76x = 174,124,481,979.05
  5. Step 5: Solve for x
    x = 174,124,481,979.05/548,769.76
  6. Step 6: Final answer
    x = 317,299.70

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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.