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Finding the Fourth Proportional to 489,362.92, 733,548.42 and 331,607.32

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Solution

The fourth proportional to 489,362.92, 733,548.42 and 331,607.32 is: 497,074.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,362.92 : 733,548.42 = 331,607.32 : x
  2. Step 2: Convert to fraction form
    489,362.92/733,548.42 = 331,607.32/x
  3. Step 3: Cross multiply
    489,362.92x = 733,548.42 × 331,607.32
  4. Step 4: Simplify right side
    489,362.92x = 243,250,025,646.43
  5. Step 5: Solve for x
    x = 243,250,025,646.43/489,362.92
  6. Step 6: Final answer
    x = 497,074.90

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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.