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Finding the Fourth Proportional to 3,948,832.80, 5,923,249.36 and 957,016.80

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Solution

The fourth proportional to 3,948,832.80, 5,923,249.36 and 957,016.80 is: 1,435,525.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948,832.80 : 5,923,249.36 = 957,016.80 : x
  2. Step 2: Convert to fraction form
    3,948,832.80/5,923,249.36 = 957,016.80/x
  3. Step 3: Cross multiply
    3,948,832.80x = 5,923,249.36 × 957,016.80
  4. Step 4: Simplify right side
    3,948,832.80x = 5,668,649,148,109.25
  5. Step 5: Solve for x
    x = 5,668,649,148,109.25/3,948,832.80
  6. Step 6: Final answer
    x = 1,435,525.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.