Home / 1,328,789.40-1,993,113.01-654,198.31

Finding the Fourth Proportional to 1,328,789.40, 1,993,113.01 and 654,198.31

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Solution

The fourth proportional to 1,328,789.40, 1,993,113.01 and 654,198.31 is: 981,262.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,789.40 : 1,993,113.01 = 654,198.31 : x
  2. Step 2: Convert to fraction form
    1,328,789.40/1,993,113.01 = 654,198.31/x
  3. Step 3: Cross multiply
    1,328,789.40x = 1,993,113.01 × 654,198.31
  4. Step 4: Simplify right side
    1,328,789.40x = 1,303,891,162,781.01
  5. Step 5: Solve for x
    x = 1,303,891,162,781.01/1,328,789.40
  6. Step 6: Final answer
    x = 981,262.47

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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.