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Finding the Fourth Proportional to 1,976,956.88, 2,965,435.31 and 481,048.88

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Solution

The fourth proportional to 1,976,956.88, 2,965,435.31 and 481,048.88 is: 721,573.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976,956.88 : 2,965,435.31 = 481,048.88 : x
  2. Step 2: Convert to fraction form
    1,976,956.88/2,965,435.31 = 481,048.88/x
  3. Step 3: Cross multiply
    1,976,956.88x = 2,965,435.31 × 481,048.88
  4. Step 4: Simplify right side
    1,976,956.88x = 1,426,519,320,963.40
  5. Step 5: Solve for x
    x = 1,426,519,320,963.40/1,976,956.88
  6. Step 6: Final answer
    x = 721,573.31

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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.