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Finding the Fourth Proportional to 644,202.72, 966,172.86 and 244,703.43

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Solution

The fourth proportional to 644,202.72, 966,172.86 and 244,703.43 is: 367,005.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,202.72 : 966,172.86 = 244,703.43 : x
  2. Step 2: Convert to fraction form
    644,202.72/966,172.86 = 244,703.43/x
  3. Step 3: Cross multiply
    644,202.72x = 966,172.86 × 244,703.43
  4. Step 4: Simplify right side
    644,202.72x = 236,425,812,814.91
  5. Step 5: Solve for x
    x = 236,425,812,814.91/644,202.72
  6. Step 6: Final answer
    x = 367,005.30

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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.