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Finding the Fourth Proportional to 548,834.91, 822,187.11 and 404,478.54

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Solution

The fourth proportional to 548,834.91, 822,187.11 and 404,478.54 is: 605,932.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,834.91 : 822,187.11 = 404,478.54 : x
  2. Step 2: Convert to fraction form
    548,834.91/822,187.11 = 404,478.54/x
  3. Step 3: Cross multiply
    548,834.91x = 822,187.11 × 404,478.54
  4. Step 4: Simplify right side
    548,834.91x = 332,557,041,859.62
  5. Step 5: Solve for x
    x = 332,557,041,859.62/548,834.91
  6. Step 6: Final answer
    x = 605,932.74

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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.