Home / 1,188,843.06-1,640,603.16-679,556.37

Finding the Fourth Proportional to 1,188,843.06, 1,640,603.16 and 679,556.37

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Solution

The fourth proportional to 1,188,843.06, 1,640,603.16 and 679,556.37 is: 937,787.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,843.06 : 1,640,603.16 = 679,556.37 : x
  2. Step 2: Convert to fraction form
    1,188,843.06/1,640,603.16 = 679,556.37/x
  3. Step 3: Cross multiply
    1,188,843.06x = 1,640,603.16 × 679,556.37
  4. Step 4: Simplify right side
    1,188,843.06x = 1,114,882,328,020.13
  5. Step 5: Solve for x
    x = 1,114,882,328,020.13/1,188,843.06
  6. Step 6: Final answer
    x = 937,787.64

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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.