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Finding the Fourth Proportional to 436,711.07, 655,059.29 and 196,691.47

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Solution

The fourth proportional to 436,711.07, 655,059.29 and 196,691.47 is: 295,033.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,711.07 : 655,059.29 = 196,691.47 : x
  2. Step 2: Convert to fraction form
    436,711.07/655,059.29 = 196,691.47/x
  3. Step 3: Cross multiply
    436,711.07x = 655,059.29 × 196,691.47
  4. Step 4: Simplify right side
    436,711.07x = 128,844,574,687.26
  5. Step 5: Solve for x
    x = 128,844,574,687.26/436,711.07
  6. Step 6: Final answer
    x = 295,033.91

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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.