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Finding the Fourth Proportional to 802,695.42, 1,203,289.80 and 269,843.76

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Solution

The fourth proportional to 802,695.42, 1,203,289.80 and 269,843.76 is: 404,512.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,695.42 : 1,203,289.80 = 269,843.76 : x
  2. Step 2: Convert to fraction form
    802,695.42/1,203,289.80 = 269,843.76/x
  3. Step 3: Cross multiply
    802,695.42x = 1,203,289.80 × 269,843.76
  4. Step 4: Simplify right side
    802,695.42x = 324,700,244,001.65
  5. Step 5: Solve for x
    x = 324,700,244,001.65/802,695.42
  6. Step 6: Final answer
    x = 404,512.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.