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Finding the Fourth Proportional to 508,532.28, 762,503.04 and 192,816.96

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Solution

The fourth proportional to 508,532.28, 762,503.04 and 192,816.96 is: 289,113.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,532.28 : 762,503.04 = 192,816.96 : x
  2. Step 2: Convert to fraction form
    508,532.28/762,503.04 = 192,816.96/x
  3. Step 3: Cross multiply
    508,532.28x = 762,503.04 × 192,816.96
  4. Step 4: Simplify right side
    508,532.28x = 147,023,518,163.56
  5. Step 5: Solve for x
    x = 147,023,518,163.56/508,532.28
  6. Step 6: Final answer
    x = 289,113.44

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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.