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Finding the Fourth Proportional to 444,814.40, 667,221.60 and 326,716.40

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Solution

The fourth proportional to 444,814.40, 667,221.60 and 326,716.40 is: 490,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,814.40 : 667,221.60 = 326,716.40 : x
  2. Step 2: Convert to fraction form
    444,814.40/667,221.60 = 326,716.40/x
  3. Step 3: Cross multiply
    444,814.40x = 667,221.60 × 326,716.40
  4. Step 4: Simplify right side
    444,814.40x = 217,992,239,154.24
  5. Step 5: Solve for x
    x = 217,992,239,154.24/444,814.40
  6. Step 6: Final answer
    x = 490,074.60

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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.