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Finding the Fourth Proportional to 262,414.73, 393,114.62 and 219,788.69

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Solution

The fourth proportional to 262,414.73, 393,114.62 and 219,788.69 is: 329,257.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,414.73 : 393,114.62 = 219,788.69 : x
  2. Step 2: Convert to fraction form
    262,414.73/393,114.62 = 219,788.69/x
  3. Step 3: Cross multiply
    262,414.73x = 393,114.62 × 219,788.69
  4. Step 4: Simplify right side
    262,414.73x = 86,402,145,933.55
  5. Step 5: Solve for x
    x = 86,402,145,933.55/262,414.73
  6. Step 6: Final answer
    x = 329,257.98

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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.