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Finding the Fourth Proportional to 331,390.80, 496,575.90 and 246,753.90

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Solution

The fourth proportional to 331,390.80, 496,575.90 and 246,753.90 is: 369,750.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,390.80 : 496,575.90 = 246,753.90 : x
  2. Step 2: Convert to fraction form
    331,390.80/496,575.90 = 246,753.90/x
  3. Step 3: Cross multiply
    331,390.80x = 496,575.90 × 246,753.90
  4. Step 4: Simplify right side
    331,390.80x = 122,532,039,971.01
  5. Step 5: Solve for x
    x = 122,532,039,971.01/331,390.80
  6. Step 6: Final answer
    x = 369,750.88

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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.