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Finding the Fourth Proportional to 503,766.90, 755,912.79 and 223,218.54

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Solution

The fourth proportional to 503,766.90, 755,912.79 and 223,218.54 is: 334,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,766.90 : 755,912.79 = 223,218.54 : x
  2. Step 2: Convert to fraction form
    503,766.90/755,912.79 = 223,218.54/x
  3. Step 3: Cross multiply
    503,766.90x = 755,912.79 × 223,218.54
  4. Step 4: Simplify right side
    503,766.90x = 168,733,749,351.13
  5. Step 5: Solve for x
    x = 168,733,749,351.13/503,766.90
  6. Step 6: Final answer
    x = 334,944.10

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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.