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Finding the Fourth Proportional to 291,183.93, 436,778.60 and 91,499.90

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Solution

The fourth proportional to 291,183.93, 436,778.60 and 91,499.90 is: 137,250.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,183.93 : 436,778.60 = 91,499.90 : x
  2. Step 2: Convert to fraction form
    291,183.93/436,778.60 = 91,499.90/x
  3. Step 3: Cross multiply
    291,183.93x = 436,778.60 × 91,499.90
  4. Step 4: Simplify right side
    291,183.93x = 39,965,195,580.75
  5. Step 5: Solve for x
    x = 39,965,195,580.75/291,183.93
  6. Step 6: Final answer
    x = 137,250.69

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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.