Home / 825,867.60-1,238,801.40-264,958.80

Finding the Fourth Proportional to 825,867.60, 1,238,801.40 and 264,958.80

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Solution

The fourth proportional to 825,867.60, 1,238,801.40 and 264,958.80 is: 397,438.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,867.60 : 1,238,801.40 = 264,958.80 : x
  2. Step 2: Convert to fraction form
    825,867.60/1,238,801.40 = 264,958.80/x
  3. Step 3: Cross multiply
    825,867.60x = 1,238,801.40 × 264,958.80
  4. Step 4: Simplify right side
    825,867.60x = 328,231,332,382.32
  5. Step 5: Solve for x
    x = 328,231,332,382.32/825,867.60
  6. Step 6: Final answer
    x = 397,438.20

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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.