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Finding the Fourth Proportional to 548,022.80, 822,034.20 and 311,826.80

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Solution

The fourth proportional to 548,022.80, 822,034.20 and 311,826.80 is: 467,740.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,022.80 : 822,034.20 = 311,826.80 : x
  2. Step 2: Convert to fraction form
    548,022.80/822,034.20 = 311,826.80/x
  3. Step 3: Cross multiply
    548,022.80x = 822,034.20 × 311,826.80
  4. Step 4: Simplify right side
    548,022.80x = 256,332,294,076.56
  5. Step 5: Solve for x
    x = 256,332,294,076.56/548,022.80
  6. Step 6: Final answer
    x = 467,740.20

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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.