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Finding the Fourth Proportional to 361,810, 499,297.92 and 200,689.84

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Solution

The fourth proportional to 361,810, 499,297.92 and 200,689.84 is: 276,952.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,810 : 499,297.92 = 200,689.84 : x
  2. Step 2: Convert to fraction form
    361,810/499,297.92 = 200,689.84/x
  3. Step 3: Cross multiply
    361,810x = 499,297.92 × 200,689.84
  4. Step 4: Simplify right side
    361,810x = 100,204,019,677.13
  5. Step 5: Solve for x
    x = 100,204,019,677.13/361,810
  6. Step 6: Final answer
    x = 276,952.05

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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.