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Finding the Fourth Proportional to 264,492.20, 396,738.30 and 251,370.20

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Solution

The fourth proportional to 264,492.20, 396,738.30 and 251,370.20 is: 377,055.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,492.20 : 396,738.30 = 251,370.20 : x
  2. Step 2: Convert to fraction form
    264,492.20/396,738.30 = 251,370.20/x
  3. Step 3: Cross multiply
    264,492.20x = 396,738.30 × 251,370.20
  4. Step 4: Simplify right side
    264,492.20x = 99,728,185,818.66
  5. Step 5: Solve for x
    x = 99,728,185,818.66/264,492.20
  6. Step 6: Final answer
    x = 377,055.30

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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.