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Finding the Fourth Proportional to 331,030.48, 496,548.96 and 131,398.96

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Solution

The fourth proportional to 331,030.48, 496,548.96 and 131,398.96 is: 197,099.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,030.48 : 496,548.96 = 131,398.96 : x
  2. Step 2: Convert to fraction form
    331,030.48/496,548.96 = 131,398.96/x
  3. Step 3: Cross multiply
    331,030.48x = 496,548.96 × 131,398.96
  4. Step 4: Simplify right side
    331,030.48x = 65,246,016,933.08
  5. Step 5: Solve for x
    x = 65,246,016,933.08/331,030.48
  6. Step 6: Final answer
    x = 197,099.73

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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.