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Finding the Fourth Proportional to 436,234.40, 653,865.60 and 169,906.40

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Solution

The fourth proportional to 436,234.40, 653,865.60 and 169,906.40 is: 254,670.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,234.40 : 653,865.60 = 169,906.40 : x
  2. Step 2: Convert to fraction form
    436,234.40/653,865.60 = 169,906.40/x
  3. Step 3: Cross multiply
    436,234.40x = 653,865.60 × 169,906.40
  4. Step 4: Simplify right side
    436,234.40x = 111,095,950,179.84
  5. Step 5: Solve for x
    x = 111,095,950,179.84/436,234.40
  6. Step 6: Final answer
    x = 254,670.31

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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.