Home / 327,914.92-491,885.34-91,278.28

Finding the Fourth Proportional to 327,914.92, 491,885.34 and 91,278.28

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Solution

The fourth proportional to 327,914.92, 491,885.34 and 91,278.28 is: 136,921.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,914.92 : 491,885.34 = 91,278.28 : x
  2. Step 2: Convert to fraction form
    327,914.92/491,885.34 = 91,278.28/x
  3. Step 3: Cross multiply
    327,914.92x = 491,885.34 × 91,278.28
  4. Step 4: Simplify right side
    327,914.92x = 44,898,447,792.42
  5. Step 5: Solve for x
    x = 44,898,447,792.42/327,914.92
  6. Step 6: Final answer
    x = 136,921.03

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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.