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Finding the Fourth Proportional to 331,203.20, 496,934.40 and 120,862.40

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Solution

The fourth proportional to 331,203.20, 496,934.40 and 120,862.40 is: 181,340.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,203.20 : 496,934.40 = 120,862.40 : x
  2. Step 2: Convert to fraction form
    331,203.20/496,934.40 = 120,862.40/x
  3. Step 3: Cross multiply
    331,203.20x = 496,934.40 × 120,862.40
  4. Step 4: Simplify right side
    331,203.20x = 60,060,684,226.56
  5. Step 5: Solve for x
    x = 60,060,684,226.56/331,203.20
  6. Step 6: Final answer
    x = 181,340.89

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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.