Home / 394,945.44-544,457.82-281,571.36

Finding the Fourth Proportional to 394,945.44, 544,457.82 and 281,571.36

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Solution

The fourth proportional to 394,945.44, 544,457.82 and 281,571.36 is: 388,164.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,945.44 : 544,457.82 = 281,571.36 : x
  2. Step 2: Convert to fraction form
    394,945.44/544,457.82 = 281,571.36/x
  3. Step 3: Cross multiply
    394,945.44x = 544,457.82 × 281,571.36
  4. Step 4: Simplify right side
    394,945.44x = 153,303,728,840.04
  5. Step 5: Solve for x
    x = 153,303,728,840.04/394,945.44
  6. Step 6: Final answer
    x = 388,164.32

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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.