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Finding the Fourth Proportional to 303,765.70, 455,648.55 and 204,232.90

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Solution

The fourth proportional to 303,765.70, 455,648.55 and 204,232.90 is: 306,349.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,765.70 : 455,648.55 = 204,232.90 : x
  2. Step 2: Convert to fraction form
    303,765.70/455,648.55 = 204,232.90/x
  3. Step 3: Cross multiply
    303,765.70x = 455,648.55 × 204,232.90
  4. Step 4: Simplify right side
    303,765.70x = 93,058,424,747.30
  5. Step 5: Solve for x
    x = 93,058,424,747.30/303,765.70
  6. Step 6: Final answer
    x = 306,349.35

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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.