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Finding the Fourth Proportional to 618,843.25, 854,003.69 and 350,571.25

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Solution

The fourth proportional to 618,843.25, 854,003.69 and 350,571.25 is: 483,788.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,843.25 : 854,003.69 = 350,571.25 : x
  2. Step 2: Convert to fraction form
    618,843.25/854,003.69 = 350,571.25/x
  3. Step 3: Cross multiply
    618,843.25x = 854,003.69 × 350,571.25
  4. Step 4: Simplify right side
    618,843.25x = 299,389,141,107.91
  5. Step 5: Solve for x
    x = 299,389,141,107.91/618,843.25
  6. Step 6: Final answer
    x = 483,788.33

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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.