Home / 2,136,740.80-3,205,111.20-640,832.80

Finding the Fourth Proportional to 2,136,740.80, 3,205,111.20 and 640,832.80

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Solution

The fourth proportional to 2,136,740.80, 3,205,111.20 and 640,832.80 is: 961,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136,740.80 : 3,205,111.20 = 640,832.80 : x
  2. Step 2: Convert to fraction form
    2,136,740.80/3,205,111.20 = 640,832.80/x
  3. Step 3: Cross multiply
    2,136,740.80x = 3,205,111.20 × 640,832.80
  4. Step 4: Simplify right side
    2,136,740.80x = 2,053,940,384,607.36
  5. Step 5: Solve for x
    x = 2,053,940,384,607.36/2,136,740.80
  6. Step 6: Final answer
    x = 961,249.20

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Double scale
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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.