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Finding the Fourth Proportional to 526,622.60, 789,956.48 and 206,843.76

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Solution

The fourth proportional to 526,622.60, 789,956.48 and 206,843.76 is: 310,274.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,622.60 : 789,956.48 = 206,843.76 : x
  2. Step 2: Convert to fraction form
    526,622.60/789,956.48 = 206,843.76/x
  3. Step 3: Cross multiply
    526,622.60x = 789,956.48 × 206,843.76
  4. Step 4: Simplify right side
    526,622.60x = 163,397,568,559.57
  5. Step 5: Solve for x
    x = 163,397,568,559.57/526,622.60
  6. Step 6: Final answer
    x = 310,274.51

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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.