Home / 2,800,661.60-4,200,992.40-2,653,205.60

Finding the Fourth Proportional to 2,800,661.60, 4,200,992.40 and 2,653,205.60

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Solution

The fourth proportional to 2,800,661.60, 4,200,992.40 and 2,653,205.60 is: 3,979,808.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800,661.60 : 4,200,992.40 = 2,653,205.60 : x
  2. Step 2: Convert to fraction form
    2,800,661.60/4,200,992.40 = 2,653,205.60/x
  3. Step 3: Cross multiply
    2,800,661.60x = 4,200,992.40 × 2,653,205.60
  4. Step 4: Simplify right side
    2,800,661.60x = 11,146,096,561,237.44
  5. Step 5: Solve for x
    x = 11,146,096,561,237.44/2,800,661.60
  6. Step 6: Final answer
    x = 3,979,808.40

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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.