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Finding the Fourth Proportional to 535,410.72, 801,890.28 and 269,246.88

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Solution

The fourth proportional to 535,410.72, 801,890.28 and 269,246.88 is: 403,253.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,410.72 : 801,890.28 = 269,246.88 : x
  2. Step 2: Convert to fraction form
    535,410.72/801,890.28 = 269,246.88/x
  3. Step 3: Cross multiply
    535,410.72x = 801,890.28 × 269,246.88
  4. Step 4: Simplify right side
    535,410.72x = 215,906,455,992.33
  5. Step 5: Solve for x
    x = 215,906,455,992.33/535,410.72
  6. Step 6: Final answer
    x = 403,253.89

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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.