Home / 320,944.89-442,919.16-193,617.75

Finding the Fourth Proportional to 320,944.89, 442,919.16 and 193,617.75

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Solution

The fourth proportional to 320,944.89, 442,919.16 and 193,617.75 is: 267,201.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,944.89 : 442,919.16 = 193,617.75 : x
  2. Step 2: Convert to fraction form
    320,944.89/442,919.16 = 193,617.75/x
  3. Step 3: Cross multiply
    320,944.89x = 442,919.16 × 193,617.75
  4. Step 4: Simplify right side
    320,944.89x = 85,757,011,191.09
  5. Step 5: Solve for x
    x = 85,757,011,191.09/320,944.89
  6. Step 6: Final answer
    x = 267,201.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.