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Finding the Fourth Proportional to 1,857,916.18, 2,786,738.95 and 833,563.65

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Solution

The fourth proportional to 1,857,916.18, 2,786,738.95 and 833,563.65 is: 1,250,284.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857,916.18 : 2,786,738.95 = 833,563.65 : x
  2. Step 2: Convert to fraction form
    1,857,916.18/2,786,738.95 = 833,563.65/x
  3. Step 3: Cross multiply
    1,857,916.18x = 2,786,738.95 × 833,563.65
  4. Step 4: Simplify right side
    1,857,916.18x = 2,322,924,290,759.17
  5. Step 5: Solve for x
    x = 2,322,924,290,759.17/1,857,916.18
  6. Step 6: Final answer
    x = 1,250,284.76

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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.