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Finding the Fourth Proportional to 363,439.69, 501,546.79 and 202,291.28

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Solution

The fourth proportional to 363,439.69, 501,546.79 and 202,291.28 is: 279,161.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,439.69 : 501,546.79 = 202,291.28 : x
  2. Step 2: Convert to fraction form
    363,439.69/501,546.79 = 202,291.28/x
  3. Step 3: Cross multiply
    363,439.69x = 501,546.79 × 202,291.28
  4. Step 4: Simplify right side
    363,439.69x = 101,458,542,128.99
  5. Step 5: Solve for x
    x = 101,458,542,128.99/363,439.69
  6. Step 6: Final answer
    x = 279,161.98

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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.