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Finding the Fourth Proportional to 408,477.89, 611,667.07 and 250,226.57

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Solution

The fourth proportional to 408,477.89, 611,667.07 and 250,226.57 is: 374,696.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,477.89 : 611,667.07 = 250,226.57 : x
  2. Step 2: Convert to fraction form
    408,477.89/611,667.07 = 250,226.57/x
  3. Step 3: Cross multiply
    408,477.89x = 611,667.07 × 250,226.57
  4. Step 4: Simplify right side
    408,477.89x = 153,055,352,908.05
  5. Step 5: Solve for x
    x = 153,055,352,908.05/408,477.89
  6. Step 6: Final answer
    x = 374,696.79

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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.