Home / 2,112,131.20-3,168,196.80-691,844.80

Finding the Fourth Proportional to 2,112,131.20, 3,168,196.80 and 691,844.80

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Solution

The fourth proportional to 2,112,131.20, 3,168,196.80 and 691,844.80 is: 1,037,767.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112,131.20 : 3,168,196.80 = 691,844.80 : x
  2. Step 2: Convert to fraction form
    2,112,131.20/3,168,196.80 = 691,844.80/x
  3. Step 3: Cross multiply
    2,112,131.20x = 3,168,196.80 × 691,844.80
  4. Step 4: Simplify right side
    2,112,131.20x = 2,191,900,481,456.64
  5. Step 5: Solve for x
    x = 2,191,900,481,456.64/2,112,131.20
  6. Step 6: Final answer
    x = 1,037,767.20

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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.