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Finding the Fourth Proportional to 445,806.69, 668,554.52 and 196,352.61

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Solution

The fourth proportional to 445,806.69, 668,554.52 and 196,352.61 is: 294,460.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,806.69 : 668,554.52 = 196,352.61 : x
  2. Step 2: Convert to fraction form
    445,806.69/668,554.52 = 196,352.61/x
  3. Step 3: Cross multiply
    445,806.69x = 668,554.52 × 196,352.61
  4. Step 4: Simplify right side
    445,806.69x = 131,272,423,947.53
  5. Step 5: Solve for x
    x = 131,272,423,947.53/445,806.69
  6. Step 6: Final answer
    x = 294,460.42

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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.