Home / 1,383,185.25-1,908,853.97-779,573.25

Finding the Fourth Proportional to 1,383,185.25, 1,908,853.97 and 779,573.25

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Solution

The fourth proportional to 1,383,185.25, 1,908,853.97 and 779,573.25 is: 1,075,843.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,185.25 : 1,908,853.97 = 779,573.25 : x
  2. Step 2: Convert to fraction form
    1,383,185.25/1,908,853.97 = 779,573.25/x
  3. Step 3: Cross multiply
    1,383,185.25x = 1,908,853.97 × 779,573.25
  4. Step 4: Simplify right side
    1,383,185.25x = 1,488,091,489,270.44
  5. Step 5: Solve for x
    x = 1,488,091,489,270.44/1,383,185.25
  6. Step 6: Final answer
    x = 1,075,843.95

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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.