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Finding the Fourth Proportional to 331,594.80, 496,333.80 and 261,610.80

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Solution

The fourth proportional to 331,594.80, 496,333.80 and 261,610.80 is: 391,581.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,594.80 : 496,333.80 = 261,610.80 : x
  2. Step 2: Convert to fraction form
    331,594.80/496,333.80 = 261,610.80/x
  3. Step 3: Cross multiply
    331,594.80x = 496,333.80 × 261,610.80
  4. Step 4: Simplify right side
    331,594.80x = 129,846,282,485.04
  5. Step 5: Solve for x
    x = 129,846,282,485.04/331,594.80
  6. Step 6: Final answer
    x = 391,581.18

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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.