Home / 372,189.36-513,738.42-211,151.44

Finding the Fourth Proportional to 372,189.36, 513,738.42 and 211,151.44

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Solution

The fourth proportional to 372,189.36, 513,738.42 and 211,151.44 is: 291,455.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,189.36 : 513,738.42 = 211,151.44 : x
  2. Step 2: Convert to fraction form
    372,189.36/513,738.42 = 211,151.44/x
  3. Step 3: Cross multiply
    372,189.36x = 513,738.42 × 211,151.44
  4. Step 4: Simplify right side
    372,189.36x = 108,476,607,016.68
  5. Step 5: Solve for x
    x = 108,476,607,016.68/372,189.36
  6. Step 6: Final answer
    x = 291,455.42

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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.