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Finding the Fourth Proportional to 379,512.15, 569,361.66 and 267,411.30

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Solution

The fourth proportional to 379,512.15, 569,361.66 and 267,411.30 is: 401,182.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,512.15 : 569,361.66 = 267,411.30 : x
  2. Step 2: Convert to fraction form
    379,512.15/569,361.66 = 267,411.30/x
  3. Step 3: Cross multiply
    379,512.15x = 569,361.66 × 267,411.30
  4. Step 4: Simplify right side
    379,512.15x = 152,253,741,670.76
  5. Step 5: Solve for x
    x = 152,253,741,670.76/379,512.15
  6. Step 6: Final answer
    x = 401,182.79

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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.