Home / 694,084.36-957,830.98-388,161.20

Finding the Fourth Proportional to 694,084.36, 957,830.98 and 388,161.20

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Solution

The fourth proportional to 694,084.36, 957,830.98 and 388,161.20 is: 535,659.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,084.36 : 957,830.98 = 388,161.20 : x
  2. Step 2: Convert to fraction form
    694,084.36/957,830.98 = 388,161.20/x
  3. Step 3: Cross multiply
    694,084.36x = 957,830.98 × 388,161.20
  4. Step 4: Simplify right side
    694,084.36x = 371,792,822,593.98
  5. Step 5: Solve for x
    x = 371,792,822,593.98/694,084.36
  6. Step 6: Final answer
    x = 535,659.42

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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.