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Finding the Fourth Proportional to 519,382.40, 778,879.20 and 182,292.80

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Solution

The fourth proportional to 519,382.40, 778,879.20 and 182,292.80 is: 273,370.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,382.40 : 778,879.20 = 182,292.80 : x
  2. Step 2: Convert to fraction form
    519,382.40/778,879.20 = 182,292.80/x
  3. Step 3: Cross multiply
    519,382.40x = 778,879.20 × 182,292.80
  4. Step 4: Simplify right side
    519,382.40x = 141,984,070,229.76
  5. Step 5: Solve for x
    x = 141,984,070,229.76/519,382.40
  6. Step 6: Final answer
    x = 273,370.97

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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.