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Finding the Fourth Proportional to 1,970,485.07, 2,719,267.89 and 1,065,067.07

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Solution

The fourth proportional to 1,970,485.07, 2,719,267.89 and 1,065,067.07 is: 1,469,791.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970,485.07 : 2,719,267.89 = 1,065,067.07 : x
  2. Step 2: Convert to fraction form
    1,970,485.07/2,719,267.89 = 1,065,067.07/x
  3. Step 3: Cross multiply
    1,970,485.07x = 2,719,267.89 × 1,065,067.07
  4. Step 4: Simplify right side
    1,970,485.07x = 2,896,202,684,147.38
  5. Step 5: Solve for x
    x = 2,896,202,684,147.38/1,970,485.07
  6. Step 6: Final answer
    x = 1,469,791.74

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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.