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Finding the Fourth Proportional to 444,651.20, 667,063.20 and 191,931.20

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Solution

The fourth proportional to 444,651.20, 667,063.20 and 191,931.20 is: 287,934.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,651.20 : 667,063.20 = 191,931.20 : x
  2. Step 2: Convert to fraction form
    444,651.20/667,063.20 = 191,931.20/x
  3. Step 3: Cross multiply
    444,651.20x = 667,063.20 × 191,931.20
  4. Step 4: Simplify right side
    444,651.20x = 128,030,240,451.84
  5. Step 5: Solve for x
    x = 128,030,240,451.84/444,651.20
  6. Step 6: Final answer
    x = 287,934.09

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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.