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Finding the Fourth Proportional to 534,508.50, 737,633.64 and 305,061.18

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Solution

The fourth proportional to 534,508.50, 737,633.64 and 305,061.18 is: 420,991.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,508.50 : 737,633.64 = 305,061.18 : x
  2. Step 2: Convert to fraction form
    534,508.50/737,633.64 = 305,061.18/x
  3. Step 3: Cross multiply
    534,508.50x = 737,633.64 × 305,061.18
  4. Step 4: Simplify right side
    534,508.50x = 225,023,388,626.10
  5. Step 5: Solve for x
    x = 225,023,388,626.10/534,508.50
  6. Step 6: Final answer
    x = 420,991.23

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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.