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Finding the Fourth Proportional to 441,816.69, 663,722.67 and 262,020.05

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Solution

The fourth proportional to 441,816.69, 663,722.67 and 262,020.05 is: 393,621.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,816.69 : 663,722.67 = 262,020.05 : x
  2. Step 2: Convert to fraction form
    441,816.69/663,722.67 = 262,020.05/x
  3. Step 3: Cross multiply
    441,816.69x = 663,722.67 × 262,020.05
  4. Step 4: Simplify right side
    441,816.69x = 173,908,649,027.14
  5. Step 5: Solve for x
    x = 173,908,649,027.14/441,816.69
  6. Step 6: Final answer
    x = 393,621.73

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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.