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Finding the Fourth Proportional to 274,428.40, 411,059.40 and 227,772.40

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Solution

The fourth proportional to 274,428.40, 411,059.40 and 227,772.40 is: 341,174.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,428.40 : 411,059.40 = 227,772.40 : x
  2. Step 2: Convert to fraction form
    274,428.40/411,059.40 = 227,772.40/x
  3. Step 3: Cross multiply
    274,428.40x = 411,059.40 × 227,772.40
  4. Step 4: Simplify right side
    274,428.40x = 93,627,986,080.56
  5. Step 5: Solve for x
    x = 93,627,986,080.56/274,428.40
  6. Step 6: Final answer
    x = 341,174.55

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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.