Home / 394,919.44-544,422-281,545.36

Finding the Fourth Proportional to 394,919.44, 544,422 and 281,545.36

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Solution

The fourth proportional to 394,919.44, 544,422 and 281,545.36 is: 388,128.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,919.44 : 544,422 = 281,545.36 : x
  2. Step 2: Convert to fraction form
    394,919.44/544,422 = 281,545.36/x
  3. Step 3: Cross multiply
    394,919.44x = 544,422 × 281,545.36
  4. Step 4: Simplify right side
    394,919.44x = 153,279,487,981.92
  5. Step 5: Solve for x
    x = 153,279,487,981.92/394,919.44
  6. Step 6: Final answer
    x = 388,128.50

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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.