Home / 405,136.15-559,092.17-223,843.57

Finding the Fourth Proportional to 405,136.15, 559,092.17 and 223,843.57

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Solution

The fourth proportional to 405,136.15, 559,092.17 and 223,843.57 is: 308,906.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,136.15 : 559,092.17 = 223,843.57 : x
  2. Step 2: Convert to fraction form
    405,136.15/559,092.17 = 223,843.57/x
  3. Step 3: Cross multiply
    405,136.15x = 559,092.17 × 223,843.57
  4. Step 4: Simplify right side
    405,136.15x = 125,149,186,453.73
  5. Step 5: Solve for x
    x = 125,149,186,453.73/405,136.15
  6. Step 6: Final answer
    x = 308,906.49

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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.