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Finding the Fourth Proportional to 534,426.26, 737,520.16 and 304,978.96

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Solution

The fourth proportional to 534,426.26, 737,520.16 and 304,978.96 is: 420,877.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,426.26 : 737,520.16 = 304,978.96 : x
  2. Step 2: Convert to fraction form
    534,426.26/737,520.16 = 304,978.96/x
  3. Step 3: Cross multiply
    534,426.26x = 737,520.16 × 304,978.96
  4. Step 4: Simplify right side
    534,426.26x = 224,928,131,375.83
  5. Step 5: Solve for x
    x = 224,928,131,375.83/534,426.26
  6. Step 6: Final answer
    x = 420,877.77

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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.