Home / 2,135,998.80-3,203,998.20-639,896.40

Finding the Fourth Proportional to 2,135,998.80, 3,203,998.20 and 639,896.40

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Solution

The fourth proportional to 2,135,998.80, 3,203,998.20 and 639,896.40 is: 959,844.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135,998.80 : 3,203,998.20 = 639,896.40 : x
  2. Step 2: Convert to fraction form
    2,135,998.80/3,203,998.20 = 639,896.40/x
  3. Step 3: Cross multiply
    2,135,998.80x = 3,203,998.20 × 639,896.40
  4. Step 4: Simplify right side
    2,135,998.80x = 2,050,226,913,786.48
  5. Step 5: Solve for x
    x = 2,050,226,913,786.48/2,135,998.80
  6. Step 6: Final answer
    x = 959,844.60

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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.