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Finding the Fourth Proportional to 432,007.80, 647,136.90 and 244,800.60

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Solution

The fourth proportional to 432,007.80, 647,136.90 and 244,800.60 is: 366,705.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,007.80 : 647,136.90 = 244,800.60 : x
  2. Step 2: Convert to fraction form
    432,007.80/647,136.90 = 244,800.60/x
  3. Step 3: Cross multiply
    432,007.80x = 647,136.90 × 244,800.60
  4. Step 4: Simplify right side
    432,007.80x = 158,419,501,402.14
  5. Step 5: Solve for x
    x = 158,419,501,402.14/432,007.80
  6. Step 6: Final answer
    x = 366,705.19

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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.