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Finding the Fourth Proportional to 1,747,826.94, 2,621,882.70 and 485,654.70

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Solution

The fourth proportional to 1,747,826.94, 2,621,882.70 and 485,654.70 is: 728,521.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747,826.94 : 2,621,882.70 = 485,654.70 : x
  2. Step 2: Convert to fraction form
    1,747,826.94/2,621,882.70 = 485,654.70/x
  3. Step 3: Cross multiply
    1,747,826.94x = 2,621,882.70 × 485,654.70
  4. Step 4: Simplify right side
    1,747,826.94x = 1,273,329,656,103.69
  5. Step 5: Solve for x
    x = 1,273,329,656,103.69/1,747,826.94
  6. Step 6: Final answer
    x = 728,521.59

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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.