Home / 819,627.70-1,229,441.55-228,651.70

Finding the Fourth Proportional to 819,627.70, 1,229,441.55 and 228,651.70

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Solution

The fourth proportional to 819,627.70, 1,229,441.55 and 228,651.70 is: 342,977.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,627.70 : 1,229,441.55 = 228,651.70 : x
  2. Step 2: Convert to fraction form
    819,627.70/1,229,441.55 = 228,651.70/x
  3. Step 3: Cross multiply
    819,627.70x = 1,229,441.55 × 228,651.70
  4. Step 4: Simplify right side
    819,627.70x = 281,113,900,458.14
  5. Step 5: Solve for x
    x = 281,113,900,458.14/819,627.70
  6. Step 6: Final answer
    x = 342,977.55

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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.