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Finding the Fourth Proportional to 445,932.99, 615,212.35 and 254,843.87

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Solution

The fourth proportional to 445,932.99, 615,212.35 and 254,843.87 is: 351,584.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,932.99 : 615,212.35 = 254,843.87 : x
  2. Step 2: Convert to fraction form
    445,932.99/615,212.35 = 254,843.87/x
  3. Step 3: Cross multiply
    445,932.99x = 615,212.35 × 254,843.87
  4. Step 4: Simplify right side
    445,932.99x = 156,783,092,432.62
  5. Step 5: Solve for x
    x = 156,783,092,432.62/445,932.99
  6. Step 6: Final answer
    x = 351,584.42

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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.