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Finding the Fourth Proportional to 1,995,764.80, 2,993,647.20 and 733,428.40

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Solution

The fourth proportional to 1,995,764.80, 2,993,647.20 and 733,428.40 is: 1,100,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995,764.80 : 2,993,647.20 = 733,428.40 : x
  2. Step 2: Convert to fraction form
    1,995,764.80/2,993,647.20 = 733,428.40/x
  3. Step 3: Cross multiply
    1,995,764.80x = 2,993,647.20 × 733,428.40
  4. Step 4: Simplify right side
    1,995,764.80x = 2,195,625,876,060.48
  5. Step 5: Solve for x
    x = 2,195,625,876,060.48/1,995,764.80
  6. Step 6: Final answer
    x = 1,100,142.60

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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.