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Finding the Fourth Proportional to 441,683.78, 662,049.39 and 216,782.42

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Solution

The fourth proportional to 441,683.78, 662,049.39 and 216,782.42 is: 324,939.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,683.78 : 662,049.39 = 216,782.42 : x
  2. Step 2: Convert to fraction form
    441,683.78/662,049.39 = 216,782.42/x
  3. Step 3: Cross multiply
    441,683.78x = 662,049.39 × 216,782.42
  4. Step 4: Simplify right side
    441,683.78x = 143,520,668,923.72
  5. Step 5: Solve for x
    x = 143,520,668,923.72/441,683.78
  6. Step 6: Final answer
    x = 324,939.87

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1.5x scale

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.