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Finding the Fourth Proportional to 330,912.82, 496,369.28 and 231,267.63

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Solution

The fourth proportional to 330,912.82, 496,369.28 and 231,267.63 is: 346,901.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,912.82 : 496,369.28 = 231,267.63 : x
  2. Step 2: Convert to fraction form
    330,912.82/496,369.28 = 231,267.63/x
  3. Step 3: Cross multiply
    330,912.82x = 496,369.28 × 231,267.63
  4. Step 4: Simplify right side
    330,912.82x = 114,794,146,990.41
  5. Step 5: Solve for x
    x = 114,794,146,990.41/330,912.82
  6. Step 6: Final answer
    x = 346,901.48

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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.