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Finding the Fourth Proportional to 609,223.70, 913,861.55 and 188,507.54

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Solution

The fourth proportional to 609,223.70, 913,861.55 and 188,507.54 is: 282,769.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,223.70 : 913,861.55 = 188,507.54 : x
  2. Step 2: Convert to fraction form
    609,223.70/913,861.55 = 188,507.54/x
  3. Step 3: Cross multiply
    609,223.70x = 913,861.55 × 188,507.54
  4. Step 4: Simplify right side
    609,223.70x = 172,269,792,691.09
  5. Step 5: Solve for x
    x = 172,269,792,691.09/609,223.70
  6. Step 6: Final answer
    x = 282,769.35

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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.