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Finding the Fourth Proportional to 503,758.75, 755,933.36 and 361,450.66

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Solution

The fourth proportional to 503,758.75, 755,933.36 and 361,450.66 is: 542,387.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,758.75 : 755,933.36 = 361,450.66 : x
  2. Step 2: Convert to fraction form
    503,758.75/755,933.36 = 361,450.66/x
  3. Step 3: Cross multiply
    503,758.75x = 755,933.36 × 361,450.66
  4. Step 4: Simplify right side
    503,758.75x = 273,232,606,301.10
  5. Step 5: Solve for x
    x = 273,232,606,301.10/503,758.75
  6. Step 6: Final answer
    x = 542,387.82

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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.