Home / 2,162,226.19-2,983,377.10-1,290,891.30

Finding the Fourth Proportional to 2,162,226.19, 2,983,377.10 and 1,290,891.30

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Solution

The fourth proportional to 2,162,226.19, 2,983,377.10 and 1,290,891.30 is: 1,781,134.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162,226.19 : 2,983,377.10 = 1,290,891.30 : x
  2. Step 2: Convert to fraction form
    2,162,226.19/2,983,377.10 = 1,290,891.30/x
  3. Step 3: Cross multiply
    2,162,226.19x = 2,983,377.10 × 1,290,891.30
  4. Step 4: Simplify right side
    2,162,226.19x = 3,851,215,543,009.23
  5. Step 5: Solve for x
    x = 3,851,215,543,009.23/2,162,226.19
  6. Step 6: Final answer
    x = 1,781,134.44

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.