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Finding the Fourth Proportional to 303,219.60, 454,829.40 and 277,631.70

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Solution

The fourth proportional to 303,219.60, 454,829.40 and 277,631.70 is: 416,447.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,219.60 : 454,829.40 = 277,631.70 : x
  2. Step 2: Convert to fraction form
    303,219.60/454,829.40 = 277,631.70/x
  3. Step 3: Cross multiply
    303,219.60x = 454,829.40 × 277,631.70
  4. Step 4: Simplify right side
    303,219.60x = 126,275,059,531.98
  5. Step 5: Solve for x
    x = 126,275,059,531.98/303,219.60
  6. Step 6: Final answer
    x = 416,447.55

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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.