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Finding the Fourth Proportional to 891,951.88, 1,230,896.91 and 484,053.70

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Solution

The fourth proportional to 891,951.88, 1,230,896.91 and 484,053.70 is: 667,995.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,951.88 : 1,230,896.91 = 484,053.70 : x
  2. Step 2: Convert to fraction form
    891,951.88/1,230,896.91 = 484,053.70/x
  3. Step 3: Cross multiply
    891,951.88x = 1,230,896.91 × 484,053.70
  4. Step 4: Simplify right side
    891,951.88x = 595,820,203,604.07
  5. Step 5: Solve for x
    x = 595,820,203,604.07/891,951.88
  6. Step 6: Final answer
    x = 667,995.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.