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Finding the Fourth Proportional to 519,260.70, 778,891.05 and 203,727.90

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Solution

The fourth proportional to 519,260.70, 778,891.05 and 203,727.90 is: 305,591.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,260.70 : 778,891.05 = 203,727.90 : x
  2. Step 2: Convert to fraction form
    519,260.70/778,891.05 = 203,727.90/x
  3. Step 3: Cross multiply
    519,260.70x = 778,891.05 × 203,727.90
  4. Step 4: Simplify right side
    519,260.70x = 158,681,837,945.30
  5. Step 5: Solve for x
    x = 158,681,837,945.30/519,260.70
  6. Step 6: Final answer
    x = 305,591.85

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Similar ratio
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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.