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Finding the Fourth Proportional to 441,992.89, 609,790.26 and 289,118.35

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Solution

The fourth proportional to 441,992.89, 609,790.26 and 289,118.35 is: 398,878.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,992.89 : 609,790.26 = 289,118.35 : x
  2. Step 2: Convert to fraction form
    441,992.89/609,790.26 = 289,118.35/x
  3. Step 3: Cross multiply
    441,992.89x = 609,790.26 × 289,118.35
  4. Step 4: Simplify right side
    441,992.89x = 176,301,553,817.27
  5. Step 5: Solve for x
    x = 176,301,553,817.27/441,992.89
  6. Step 6: Final answer
    x = 398,878.71

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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.