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Finding the Fourth Proportional to 331,362.72, 496,746 and 120,853.44

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Solution

The fourth proportional to 331,362.72, 496,746 and 120,853.44 is: 181,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,362.72 : 496,746 = 120,853.44 : x
  2. Step 2: Convert to fraction form
    331,362.72/496,746 = 120,853.44/x
  3. Step 3: Cross multiply
    331,362.72x = 496,746 × 120,853.44
  4. Step 4: Simplify right side
    331,362.72x = 60,033,462,906.24
  5. Step 5: Solve for x
    x = 60,033,462,906.24/331,362.72
  6. Step 6: Final answer
    x = 181,171.45

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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.