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Finding the Fourth Proportional to 534,110.70, 801,619.65 and 218,793.90

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Solution

The fourth proportional to 534,110.70, 801,619.65 and 218,793.90 is: 328,376.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,110.70 : 801,619.65 = 218,793.90 : x
  2. Step 2: Convert to fraction form
    534,110.70/801,619.65 = 218,793.90/x
  3. Step 3: Cross multiply
    534,110.70x = 801,619.65 × 218,793.90
  4. Step 4: Simplify right side
    534,110.70x = 175,389,489,540.14
  5. Step 5: Solve for x
    x = 175,389,489,540.14/534,110.70
  6. Step 6: Final answer
    x = 328,376.66

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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.