Home / 327,812.76-491,468.04-103,043.16

Finding the Fourth Proportional to 327,812.76, 491,468.04 and 103,043.16

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Solution

The fourth proportional to 327,812.76, 491,468.04 and 103,043.16 is: 154,485.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,812.76 : 491,468.04 = 103,043.16 : x
  2. Step 2: Convert to fraction form
    327,812.76/491,468.04 = 103,043.16/x
  3. Step 3: Cross multiply
    327,812.76x = 491,468.04 × 103,043.16
  4. Step 4: Simplify right side
    327,812.76x = 50,642,419,880.61
  5. Step 5: Solve for x
    x = 50,642,419,880.61/327,812.76
  6. Step 6: Final answer
    x = 154,485.81

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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.