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Finding the Fourth Proportional to 3,948,865.75, 5,923,298.67 and 957,049.75

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Solution

The fourth proportional to 3,948,865.75, 5,923,298.67 and 957,049.75 is: 1,435,574.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948,865.75 : 5,923,298.67 = 957,049.75 : x
  2. Step 2: Convert to fraction form
    3,948,865.75/5,923,298.67 = 957,049.75/x
  3. Step 3: Cross multiply
    3,948,865.75x = 5,923,298.67 × 957,049.75
  4. Step 4: Simplify right side
    3,948,865.75x = 5,668,891,511,298.83
  5. Step 5: Solve for x
    x = 5,668,891,511,298.83/3,948,865.75
  6. Step 6: Final answer
    x = 1,435,574.64

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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.