Home / 467,422.12-645,353.94-276,496.84

Finding the Fourth Proportional to 467,422.12, 645,353.94 and 276,496.84

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Solution

The fourth proportional to 467,422.12, 645,353.94 and 276,496.84 is: 381,749.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,422.12 : 645,353.94 = 276,496.84 : x
  2. Step 2: Convert to fraction form
    467,422.12/645,353.94 = 276,496.84/x
  3. Step 3: Cross multiply
    467,422.12x = 645,353.94 × 276,496.84
  4. Step 4: Simplify right side
    467,422.12x = 178,438,325,091.55
  5. Step 5: Solve for x
    x = 178,438,325,091.55/467,422.12
  6. Step 6: Final answer
    x = 381,749.85

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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.