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Finding the Fourth Proportional to 344,960.20, 517,440.30 and 251,648.20

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Solution

The fourth proportional to 344,960.20, 517,440.30 and 251,648.20 is: 377,472.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,960.20 : 517,440.30 = 251,648.20 : x
  2. Step 2: Convert to fraction form
    344,960.20/517,440.30 = 251,648.20/x
  3. Step 3: Cross multiply
    344,960.20x = 517,440.30 × 251,648.20
  4. Step 4: Simplify right side
    344,960.20x = 130,212,920,102.46
  5. Step 5: Solve for x
    x = 130,212,920,102.46/344,960.20
  6. Step 6: Final answer
    x = 377,472.30

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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.