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Finding the Fourth Proportional to 439,671.78, 606,737.16 and 248,684.94

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Solution

The fourth proportional to 439,671.78, 606,737.16 and 248,684.94 is: 343,179.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,671.78 : 606,737.16 = 248,684.94 : x
  2. Step 2: Convert to fraction form
    439,671.78/606,737.16 = 248,684.94/x
  3. Step 3: Cross multiply
    439,671.78x = 606,737.16 × 248,684.94
  4. Step 4: Simplify right side
    439,671.78x = 150,886,394,230.37
  5. Step 5: Solve for x
    x = 150,886,394,230.37/439,671.78
  6. Step 6: Final answer
    x = 343,179.62

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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.