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Finding the Fourth Proportional to 358,568,692.80, 537,853,039.20 and 327,957,691.20

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Solution

The fourth proportional to 358,568,692.80, 537,853,039.20 and 327,957,691.20 is: 491,936,536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,568,692.80 : 537,853,039.20 = 327,957,691.20 : x
  2. Step 2: Convert to fraction form
    358,568,692.80/537,853,039.20 = 327,957,691.20/x
  3. Step 3: Cross multiply
    358,568,692.80x = 537,853,039.20 × 327,957,691.20
  4. Step 4: Simplify right side
    358,568,692.80x = 176,393,040,940,935,104
  5. Step 5: Solve for x
    x = 176,393,040,940,935,104/358,568,692.80
  6. Step 6: Final answer
    x = 491,936,536.80

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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.