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Finding the Fourth Proportional to 534,516.75, 737,645.00 and 305,069.45

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Solution

The fourth proportional to 534,516.75, 737,645.00 and 305,069.45 is: 421,002.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,516.75 : 737,645.00 = 305,069.45 : x
  2. Step 2: Convert to fraction form
    534,516.75/737,645.00 = 305,069.45/x
  3. Step 3: Cross multiply
    534,516.75x = 737,645.00 × 305,069.45
  4. Step 4: Simplify right side
    534,516.75x = 225,032,949,231.68
  5. Step 5: Solve for x
    x = 225,032,949,231.68/534,516.75
  6. Step 6: Final answer
    x = 421,002.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.