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Finding the Fourth Proportional to 503,938.11, 755,531.96 and 219,574.80

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Solution

The fourth proportional to 503,938.11, 755,531.96 and 219,574.80 is: 329,198.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,938.11 : 755,531.96 = 219,574.80 : x
  2. Step 2: Convert to fraction form
    503,938.11/755,531.96 = 219,574.80/x
  3. Step 3: Cross multiply
    503,938.11x = 755,531.96 × 219,574.80
  4. Step 4: Simplify right side
    503,938.11x = 165,895,777,912.73
  5. Step 5: Solve for x
    x = 165,895,777,912.73/503,938.11
  6. Step 6: Final answer
    x = 329,198.72

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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.