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Finding the Fourth Proportional to 351,992.86, 527,114.47 and 322,129.36

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Solution

The fourth proportional to 351,992.86, 527,114.47 and 322,129.36 is: 482,393.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,992.86 : 527,114.47 = 322,129.36 : x
  2. Step 2: Convert to fraction form
    351,992.86/527,114.47 = 322,129.36/x
  3. Step 3: Cross multiply
    351,992.86x = 527,114.47 × 322,129.36
  4. Step 4: Simplify right side
    351,992.86x = 169,799,042,621.62
  5. Step 5: Solve for x
    x = 169,799,042,621.62/351,992.86
  6. Step 6: Final answer
    x = 482,393.44

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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.