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Finding the Fourth Proportional to 331,065.75, 496,595.70 and 219,246.27

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Solution

The fourth proportional to 331,065.75, 496,595.70 and 219,246.27 is: 328,867.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,065.75 : 496,595.70 = 219,246.27 : x
  2. Step 2: Convert to fraction form
    331,065.75/496,595.70 = 219,246.27/x
  3. Step 3: Cross multiply
    331,065.75x = 496,595.70 × 219,246.27
  4. Step 4: Simplify right side
    331,065.75x = 108,876,754,923.04
  5. Step 5: Solve for x
    x = 108,876,754,923.04/331,065.75
  6. Step 6: Final answer
    x = 328,867.47

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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.