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Finding the Fourth Proportional to 436,391.57, 654,580.77 and 196,335.95

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Solution

The fourth proportional to 436,391.57, 654,580.77 and 196,335.95 is: 294,500.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,391.57 : 654,580.77 = 196,335.95 : x
  2. Step 2: Convert to fraction form
    436,391.57/654,580.77 = 196,335.95/x
  3. Step 3: Cross multiply
    436,391.57x = 654,580.77 × 196,335.95
  4. Step 4: Simplify right side
    436,391.57x = 128,517,737,329.68
  5. Step 5: Solve for x
    x = 128,517,737,329.68/436,391.57
  6. Step 6: Final answer
    x = 294,500.96

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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.