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Finding the Fourth Proportional to 618,843.75, 854,004.38 and 350,571.75

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Solution

The fourth proportional to 618,843.75, 854,004.38 and 350,571.75 is: 483,789.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,843.75 : 854,004.38 = 350,571.75 : x
  2. Step 2: Convert to fraction form
    618,843.75/854,004.38 = 350,571.75/x
  3. Step 3: Cross multiply
    618,843.75x = 854,004.38 × 350,571.75
  4. Step 4: Simplify right side
    618,843.75x = 299,389,808,251.41
  5. Step 5: Solve for x
    x = 299,389,808,251.41/618,843.75
  6. Step 6: Final answer
    x = 483,789.02

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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.