Home / 1,329,099.80-1,993,553.30-519,331.95

Finding the Fourth Proportional to 1,329,099.80, 1,993,553.30 and 519,331.95

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Solution

The fourth proportional to 1,329,099.80, 1,993,553.30 and 519,331.95 is: 778,960.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,099.80 : 1,993,553.30 = 519,331.95 : x
  2. Step 2: Convert to fraction form
    1,329,099.80/1,993,553.30 = 519,331.95/x
  3. Step 3: Cross multiply
    1,329,099.80x = 1,993,553.30 × 519,331.95
  4. Step 4: Simplify right side
    1,329,099.80x = 1,035,315,920,121.28
  5. Step 5: Solve for x
    x = 1,035,315,920,121.28/1,329,099.80
  6. Step 6: Final answer
    x = 778,960.26

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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.