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Finding the Fourth Proportional to 311,863.60, 466,920.60 and 303,115.60

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Solution

The fourth proportional to 311,863.60, 466,920.60 and 303,115.60 is: 453,823.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,863.60 : 466,920.60 = 303,115.60 : x
  2. Step 2: Convert to fraction form
    311,863.60/466,920.60 = 303,115.60/x
  3. Step 3: Cross multiply
    311,863.60x = 466,920.60 × 303,115.60
  4. Step 4: Simplify right side
    311,863.60x = 141,530,917,821.36
  5. Step 5: Solve for x
    x = 141,530,917,821.36/311,863.60
  6. Step 6: Final answer
    x = 453,823.14

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.