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Finding the Fourth Proportional to 552,691.20, 828,550.80 and 374,620.80

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Solution

The fourth proportional to 552,691.20, 828,550.80 and 374,620.80 is: 561,601.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,691.20 : 828,550.80 = 374,620.80 : x
  2. Step 2: Convert to fraction form
    552,691.20/828,550.80 = 374,620.80/x
  3. Step 3: Cross multiply
    552,691.20x = 828,550.80 × 374,620.80
  4. Step 4: Simplify right side
    552,691.20x = 310,392,363,536.64
  5. Step 5: Solve for x
    x = 310,392,363,536.64/552,691.20
  6. Step 6: Final answer
    x = 561,601.78

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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.