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Finding the Fourth Proportional to 444,986.64, 667,479.96 and 208,495.80

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Solution

The fourth proportional to 444,986.64, 667,479.96 and 208,495.80 is: 312,743.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,986.64 : 667,479.96 = 208,495.80 : x
  2. Step 2: Convert to fraction form
    444,986.64/667,479.96 = 208,495.80/x
  3. Step 3: Cross multiply
    444,986.64x = 667,479.96 × 208,495.80
  4. Step 4: Simplify right side
    444,986.64x = 139,166,768,244.17
  5. Step 5: Solve for x
    x = 139,166,768,244.17/444,986.64
  6. Step 6: Final answer
    x = 312,743.70

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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.