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Finding the Fourth Proportional to 1,080,805.06, 1,619,896.72 and 793,834.70

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Solution

The fourth proportional to 1,080,805.06, 1,619,896.72 and 793,834.70 is: 1,189,789.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,805.06 : 1,619,896.72 = 793,834.70 : x
  2. Step 2: Convert to fraction form
    1,080,805.06/1,619,896.72 = 793,834.70/x
  3. Step 3: Cross multiply
    1,080,805.06x = 1,619,896.72 × 793,834.70
  4. Step 4: Simplify right side
    1,080,805.06x = 1,285,930,221,015.29
  5. Step 5: Solve for x
    x = 1,285,930,221,015.29/1,080,805.06
  6. Step 6: Final answer
    x = 1,189,789.23

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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.