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Finding the Fourth Proportional to 1,805,601, 2,491,729.74 and 1,000,785

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Solution

The fourth proportional to 1,805,601, 2,491,729.74 and 1,000,785 is: 1,381,083.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805,601 : 2,491,729.74 = 1,000,785 : x
  2. Step 2: Convert to fraction form
    1,805,601/2,491,729.74 = 1,000,785/x
  3. Step 3: Cross multiply
    1,805,601x = 2,491,729.74 × 1,000,785
  4. Step 4: Simplify right side
    1,805,601x = 2,493,685,747,845.90
  5. Step 5: Solve for x
    x = 2,493,685,747,845.90/1,805,601
  6. Step 6: Final answer
    x = 1,381,083.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.