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Finding the Fourth Proportional to 518,771.41, 778,229.94 and 181,734.91

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Solution

The fourth proportional to 518,771.41, 778,229.94 and 181,734.91 is: 272,627.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,771.41 : 778,229.94 = 181,734.91 : x
  2. Step 2: Convert to fraction form
    518,771.41/778,229.94 = 181,734.91/x
  3. Step 3: Cross multiply
    518,771.41x = 778,229.94 × 181,734.91
  4. Step 4: Simplify right side
    518,771.41x = 141,431,548,105.21
  5. Step 5: Solve for x
    x = 141,431,548,105.21/518,771.41
  6. Step 6: Final answer
    x = 272,627.88

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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.