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Finding the Fourth Proportional to 376,427.76, 564,143.32 and 276,118.32

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Solution

The fourth proportional to 376,427.76, 564,143.32 and 276,118.32 is: 413,811.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,427.76 : 564,143.32 = 276,118.32 : x
  2. Step 2: Convert to fraction form
    376,427.76/564,143.32 = 276,118.32/x
  3. Step 3: Cross multiply
    376,427.76x = 564,143.32 × 276,118.32
  4. Step 4: Simplify right side
    376,427.76x = 155,770,305,757.62
  5. Step 5: Solve for x
    x = 155,770,305,757.62/376,427.76
  6. Step 6: Final answer
    x = 413,811.95

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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.