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Finding the Fourth Proportional to 489,652.20, 733,076.70 and 301,396.20

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Solution

The fourth proportional to 489,652.20, 733,076.70 and 301,396.20 is: 451,231.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,652.20 : 733,076.70 = 301,396.20 : x
  2. Step 2: Convert to fraction form
    489,652.20/733,076.70 = 301,396.20/x
  3. Step 3: Cross multiply
    489,652.20x = 733,076.70 × 301,396.20
  4. Step 4: Simplify right side
    489,652.20x = 220,946,531,688.54
  5. Step 5: Solve for x
    x = 220,946,531,688.54/489,652.20
  6. Step 6: Final answer
    x = 451,231.57

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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.