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Finding the Fourth Proportional to 422,459.28, 633,834.72 and 264,499.56

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Solution

The fourth proportional to 422,459.28, 633,834.72 and 264,499.56 is: 396,840.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,459.28 : 633,834.72 = 264,499.56 : x
  2. Step 2: Convert to fraction form
    422,459.28/633,834.72 = 264,499.56/x
  3. Step 3: Cross multiply
    422,459.28x = 633,834.72 × 264,499.56
  4. Step 4: Simplify right side
    422,459.28x = 167,649,004,552.72
  5. Step 5: Solve for x
    x = 167,649,004,552.72/422,459.28
  6. Step 6: Final answer
    x = 396,840.62

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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.