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Finding the Fourth Proportional to 503,756.99, 755,930.73 and 361,448.90

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Solution

The fourth proportional to 503,756.99, 755,930.73 and 361,448.90 is: 542,385.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,756.99 : 755,930.73 = 361,448.90 : x
  2. Step 2: Convert to fraction form
    503,756.99/755,930.73 = 361,448.90/x
  3. Step 3: Cross multiply
    503,756.99x = 755,930.73 × 361,448.90
  4. Step 4: Simplify right side
    503,756.99x = 273,230,329,212.07
  5. Step 5: Solve for x
    x = 273,230,329,212.07/503,756.99
  6. Step 6: Final answer
    x = 542,385.19

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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.