Home / 1,993,904.20-2,990,856.30-664,208.20

Finding the Fourth Proportional to 1,993,904.20, 2,990,856.30 and 664,208.20

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Solution

The fourth proportional to 1,993,904.20, 2,990,856.30 and 664,208.20 is: 996,312.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,904.20 : 2,990,856.30 = 664,208.20 : x
  2. Step 2: Convert to fraction form
    1,993,904.20/2,990,856.30 = 664,208.20/x
  3. Step 3: Cross multiply
    1,993,904.20x = 2,990,856.30 × 664,208.20
  4. Step 4: Simplify right side
    1,993,904.20x = 1,986,551,279,481.66
  5. Step 5: Solve for x
    x = 1,986,551,279,481.66/1,993,904.20
  6. Step 6: Final answer
    x = 996,312.30

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Similar ratio
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1.5x scale

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.