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Finding the Fourth Proportional to 1,857,694.82, 2,786,819.25 and 659,516.80

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Solution

The fourth proportional to 1,857,694.82, 2,786,819.25 and 659,516.80 is: 989,373.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857,694.82 : 2,786,819.25 = 659,516.80 : x
  2. Step 2: Convert to fraction form
    1,857,694.82/2,786,819.25 = 659,516.80/x
  3. Step 3: Cross multiply
    1,857,694.82x = 2,786,819.25 × 659,516.80
  4. Step 4: Simplify right side
    1,857,694.82x = 1,837,954,113,938.40
  5. Step 5: Solve for x
    x = 1,837,954,113,938.40/1,857,694.82
  6. Step 6: Final answer
    x = 989,373.55

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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.