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Finding the Fourth Proportional to 444,643.50, 667,090.17 and 178,590.78

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Solution

The fourth proportional to 444,643.50, 667,090.17 and 178,590.78 is: 267,936.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,643.50 : 667,090.17 = 178,590.78 : x
  2. Step 2: Convert to fraction form
    444,643.50/667,090.17 = 178,590.78/x
  3. Step 3: Cross multiply
    444,643.50x = 667,090.17 × 178,590.78
  4. Step 4: Simplify right side
    444,643.50x = 119,136,153,790.63
  5. Step 5: Solve for x
    x = 119,136,153,790.63/444,643.50
  6. Step 6: Final answer
    x = 267,936.34

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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.