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Finding the Fourth Proportional to 331,591.68, 496,997.91 and 153,724.32

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Solution

The fourth proportional to 331,591.68, 496,997.91 and 153,724.32 is: 230,405.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,591.68 : 496,997.91 = 153,724.32 : x
  2. Step 2: Convert to fraction form
    331,591.68/496,997.91 = 153,724.32/x
  3. Step 3: Cross multiply
    331,591.68x = 496,997.91 × 153,724.32
  4. Step 4: Simplify right side
    331,591.68x = 76,400,665,756.17
  5. Step 5: Solve for x
    x = 76,400,665,756.17/331,591.68
  6. Step 6: Final answer
    x = 230,405.86

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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.