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Finding the Fourth Proportional to 467,211.53, 644,757.95 and 276,223.25

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Solution

The fourth proportional to 467,211.53, 644,757.95 and 276,223.25 is: 381,191.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,211.53 : 644,757.95 = 276,223.25 : x
  2. Step 2: Convert to fraction form
    467,211.53/644,757.95 = 276,223.25/x
  3. Step 3: Cross multiply
    467,211.53x = 644,757.95 × 276,223.25
  4. Step 4: Simplify right side
    467,211.53x = 178,097,138,714.79
  5. Step 5: Solve for x
    x = 178,097,138,714.79/467,211.53
  6. Step 6: Final answer
    x = 381,191.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.