Home / 815,441.55-1,223,067.28-216,449.25

Finding the Fourth Proportional to 815,441.55, 1,223,067.28 and 216,449.25

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Solution

The fourth proportional to 815,441.55, 1,223,067.28 and 216,449.25 is: 324,648.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,441.55 : 1,223,067.28 = 216,449.25 : x
  2. Step 2: Convert to fraction form
    815,441.55/1,223,067.28 = 216,449.25/x
  3. Step 3: Cross multiply
    815,441.55x = 1,223,067.28 × 216,449.25
  4. Step 4: Simplify right side
    815,441.55x = 264,731,992,668.43
  5. Step 5: Solve for x
    x = 264,731,992,668.43/815,441.55
  6. Step 6: Final answer
    x = 324,648.64

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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.