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Finding the Fourth Proportional to 331,139.80, 496,199.40 and 246,502.90

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Solution

The fourth proportional to 331,139.80, 496,199.40 and 246,502.90 is: 369,374.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,139.80 : 496,199.40 = 246,502.90 : x
  2. Step 2: Convert to fraction form
    331,139.80/496,199.40 = 246,502.90/x
  3. Step 3: Cross multiply
    331,139.80x = 496,199.40 × 246,502.90
  4. Step 4: Simplify right side
    331,139.80x = 122,314,591,078.26
  5. Step 5: Solve for x
    x = 122,314,591,078.26/331,139.80
  6. Step 6: Final answer
    x = 369,374.48

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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.