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Finding the Fourth Proportional to 444,658.70, 667,074.45 and 191,938.70

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Solution

The fourth proportional to 444,658.70, 667,074.45 and 191,938.70 is: 287,945.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,658.70 : 667,074.45 = 191,938.70 : x
  2. Step 2: Convert to fraction form
    444,658.70/667,074.45 = 191,938.70/x
  3. Step 3: Cross multiply
    444,658.70x = 667,074.45 × 191,938.70
  4. Step 4: Simplify right side
    444,658.70x = 128,037,402,736.22
  5. Step 5: Solve for x
    x = 128,037,402,736.22/444,658.70
  6. Step 6: Final answer
    x = 287,945.34

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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.