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Finding the Fourth Proportional to 548,049.70, 821,296.95 and 404,776.90

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Solution

The fourth proportional to 548,049.70, 821,296.95 and 404,776.90 is: 606,591.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,049.70 : 821,296.95 = 404,776.90 : x
  2. Step 2: Convert to fraction form
    548,049.70/821,296.95 = 404,776.90/x
  3. Step 3: Cross multiply
    548,049.70x = 821,296.95 × 404,776.90
  4. Step 4: Simplify right side
    548,049.70x = 332,442,033,400.46
  5. Step 5: Solve for x
    x = 332,442,033,400.46/548,049.70
  6. Step 6: Final answer
    x = 606,591.03

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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.