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Finding the Fourth Proportional to 363,973.75, 502,287.44 and 200,636.06

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Solution

The fourth proportional to 363,973.75, 502,287.44 and 200,636.06 is: 276,879.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,973.75 : 502,287.44 = 200,636.06 : x
  2. Step 2: Convert to fraction form
    363,973.75/502,287.44 = 200,636.06/x
  3. Step 3: Cross multiply
    363,973.75x = 502,287.44 × 200,636.06
  4. Step 4: Simplify right side
    363,973.75x = 100,776,973,201.63
  5. Step 5: Solve for x
    x = 100,776,973,201.63/363,973.75
  6. Step 6: Final answer
    x = 276,879.79

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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.