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Finding the Fourth Proportional to 361,788.77, 499,299.17 and 200,695.72

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Solution

The fourth proportional to 361,788.77, 499,299.17 and 200,695.72 is: 276,977.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,788.77 : 499,299.17 = 200,695.72 : x
  2. Step 2: Convert to fraction form
    361,788.77/499,299.17 = 200,695.72/x
  3. Step 3: Cross multiply
    361,788.77x = 499,299.17 × 200,695.72
  4. Step 4: Simplify right side
    361,788.77x = 100,207,206,418.55
  5. Step 5: Solve for x
    x = 100,207,206,418.55/361,788.77
  6. Step 6: Final answer
    x = 276,977.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.