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Finding the Fourth Proportional to 335,891.80, 463,625.94 and 221,254.12

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Solution

The fourth proportional to 335,891.80, 463,625.94 and 221,254.12 is: 305,393.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,891.80 : 463,625.94 = 221,254.12 : x
  2. Step 2: Convert to fraction form
    335,891.80/463,625.94 = 221,254.12/x
  3. Step 3: Cross multiply
    335,891.80x = 463,625.94 × 221,254.12
  4. Step 4: Simplify right side
    335,891.80x = 102,579,149,363.87
  5. Step 5: Solve for x
    x = 102,579,149,363.87/335,891.80
  6. Step 6: Final answer
    x = 305,393.43

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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.