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Finding the Fourth Proportional to 447,995.75, 672,091.97 and 329,307.26

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Solution

The fourth proportional to 447,995.75, 672,091.97 and 329,307.26 is: 494,033.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,995.75 : 672,091.97 = 329,307.26 : x
  2. Step 2: Convert to fraction form
    447,995.75/672,091.97 = 329,307.26/x
  3. Step 3: Cross multiply
    447,995.75x = 672,091.97 × 329,307.26
  4. Step 4: Simplify right side
    447,995.75x = 221,324,760,101.71
  5. Step 5: Solve for x
    x = 221,324,760,101.71/447,995.75
  6. Step 6: Final answer
    x = 494,033.17

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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.