Home / 2,618,888.61-3,928,498.88-821,843.04

Finding the Fourth Proportional to 2,618,888.61, 3,928,498.88 and 821,843.04

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Solution

The fourth proportional to 2,618,888.61, 3,928,498.88 and 821,843.04 is: 1,232,816.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618,888.61 : 3,928,498.88 = 821,843.04 : x
  2. Step 2: Convert to fraction form
    2,618,888.61/3,928,498.88 = 821,843.04/x
  3. Step 3: Cross multiply
    2,618,888.61x = 3,928,498.88 × 821,843.04
  4. Step 4: Simplify right side
    2,618,888.61x = 3,228,609,458,066.58
  5. Step 5: Solve for x
    x = 3,228,609,458,066.58/2,618,888.61
  6. Step 6: Final answer
    x = 1,232,816.64

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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.