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Finding the Fourth Proportional to 370,538.28, 511,352.30 and 227,377.44

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Solution

The fourth proportional to 370,538.28, 511,352.30 and 227,377.44 is: 313,786.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,538.28 : 511,352.30 = 227,377.44 : x
  2. Step 2: Convert to fraction form
    370,538.28/511,352.30 = 227,377.44/x
  3. Step 3: Cross multiply
    370,538.28x = 511,352.30 × 227,377.44
  4. Step 4: Simplify right side
    370,538.28x = 116,269,976,912.11
  5. Step 5: Solve for x
    x = 116,269,976,912.11/370,538.28
  6. Step 6: Final answer
    x = 313,786.68

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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.