Home / 680,976.36-939,738.24-379,170.36

Finding the Fourth Proportional to 680,976.36, 939,738.24 and 379,170.36

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Solution

The fourth proportional to 680,976.36, 939,738.24 and 379,170.36 is: 523,250.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,976.36 : 939,738.24 = 379,170.36 : x
  2. Step 2: Convert to fraction form
    680,976.36/939,738.24 = 379,170.36/x
  3. Step 3: Cross multiply
    680,976.36x = 939,738.24 × 379,170.36
  4. Step 4: Simplify right side
    680,976.36x = 356,320,886,766.57
  5. Step 5: Solve for x
    x = 356,320,886,766.57/680,976.36
  6. Step 6: Final answer
    x = 523,250.01

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1.5x scale

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.