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Finding the Fourth Proportional to 331,074.83, 496,609.65 and 219,255.48

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Solution

The fourth proportional to 331,074.83, 496,609.65 and 219,255.48 is: 328,881.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,074.83 : 496,609.65 = 219,255.48 : x
  2. Step 2: Convert to fraction form
    331,074.83/496,609.65 = 219,255.48/x
  3. Step 3: Cross multiply
    331,074.83x = 496,609.65 × 219,255.48
  4. Step 4: Simplify right side
    331,074.83x = 108,884,387,183.38
  5. Step 5: Solve for x
    x = 108,884,387,183.38/331,074.83
  6. Step 6: Final answer
    x = 328,881.50

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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.