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Finding the Fourth Proportional to 361,791.71, 499,302.45 and 200,698.70

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Solution

The fourth proportional to 361,791.71, 499,302.45 and 200,698.70 is: 276,980.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,791.71 : 499,302.45 = 200,698.70 : x
  2. Step 2: Convert to fraction form
    361,791.71/499,302.45 = 200,698.70/x
  3. Step 3: Cross multiply
    361,791.71x = 499,302.45 × 200,698.70
  4. Step 4: Simplify right side
    361,791.71x = 100,209,352,621.82
  5. Step 5: Solve for x
    x = 100,209,352,621.82/361,791.71
  6. Step 6: Final answer
    x = 276,980.79

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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.