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Finding the Fourth Proportional to 421,745.58, 582,008.22 and 230,759.73

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Solution

The fourth proportional to 421,745.58, 582,008.22 and 230,759.73 is: 318,448.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,745.58 : 582,008.22 = 230,759.73 : x
  2. Step 2: Convert to fraction form
    421,745.58/582,008.22 = 230,759.73/x
  3. Step 3: Cross multiply
    421,745.58x = 582,008.22 × 230,759.73
  4. Step 4: Simplify right side
    421,745.58x = 134,304,059,704.98
  5. Step 5: Solve for x
    x = 134,304,059,704.98/421,745.58
  6. Step 6: Final answer
    x = 318,448.06

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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.