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Finding the Fourth Proportional to 276,253.62, 381,405.24 and 189,184.47

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Solution

The fourth proportional to 276,253.62, 381,405.24 and 189,184.47 is: 261,194.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,253.62 : 381,405.24 = 189,184.47 : x
  2. Step 2: Convert to fraction form
    276,253.62/381,405.24 = 189,184.47/x
  3. Step 3: Cross multiply
    276,253.62x = 381,405.24 × 189,184.47
  4. Step 4: Simplify right side
    276,253.62x = 72,155,948,184.62
  5. Step 5: Solve for x
    x = 72,155,948,184.62/276,253.62
  6. Step 6: Final answer
    x = 261,194.58

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1.5x scale

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.