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Finding the Fourth Proportional to 644,026.96, 965,729.72 and 269,949.52

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Solution

The fourth proportional to 644,026.96, 965,729.72 and 269,949.52 is: 404,794.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,026.96 : 965,729.72 = 269,949.52 : x
  2. Step 2: Convert to fraction form
    644,026.96/965,729.72 = 269,949.52/x
  3. Step 3: Cross multiply
    644,026.96x = 965,729.72 × 269,949.52
  4. Step 4: Simplify right side
    644,026.96x = 260,698,274,363.73
  5. Step 5: Solve for x
    x = 260,698,274,363.73/644,026.96
  6. Step 6: Final answer
    x = 404,794.04

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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.