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Finding the Fourth Proportional to 305,863.90, 458,795.85 and 227,131.90

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Solution

The fourth proportional to 305,863.90, 458,795.85 and 227,131.90 is: 340,697.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,863.90 : 458,795.85 = 227,131.90 : x
  2. Step 2: Convert to fraction form
    305,863.90/458,795.85 = 227,131.90/x
  3. Step 3: Cross multiply
    305,863.90x = 458,795.85 × 227,131.90
  4. Step 4: Simplify right side
    305,863.90x = 104,207,173,122.62
  5. Step 5: Solve for x
    x = 104,207,173,122.62/305,863.90
  6. Step 6: Final answer
    x = 340,697.85

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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.