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Finding the Fourth Proportional to 611,930.97, 844,445.69 and 336,288.17

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Solution

The fourth proportional to 611,930.97, 844,445.69 and 336,288.17 is: 464,067.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,930.97 : 844,445.69 = 336,288.17 : x
  2. Step 2: Convert to fraction form
    611,930.97/844,445.69 = 336,288.17/x
  3. Step 3: Cross multiply
    611,930.97x = 844,445.69 × 336,288.17
  4. Step 4: Simplify right side
    611,930.97x = 283,977,095,754.49
  5. Step 5: Solve for x
    x = 283,977,095,754.49/611,930.97
  6. Step 6: Final answer
    x = 464,067.21

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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.