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Finding the Fourth Proportional to 1,986,866.02, 2,741,799 and 1,127,375.02

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Solution

The fourth proportional to 1,986,866.02, 2,741,799 and 1,127,375.02 is: 1,555,734.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,866.02 : 2,741,799 = 1,127,375.02 : x
  2. Step 2: Convert to fraction form
    1,986,866.02/2,741,799 = 1,127,375.02/x
  3. Step 3: Cross multiply
    1,986,866.02x = 2,741,799 × 1,127,375.02
  4. Step 4: Simplify right side
    1,986,866.02x = 3,091,035,702,460.98
  5. Step 5: Solve for x
    x = 3,091,035,702,460.98/1,986,866.02
  6. Step 6: Final answer
    x = 1,555,734.34

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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.