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Finding the Fourth Proportional to 273,905.80, 410,858.70 and 263,408.20

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Solution

The fourth proportional to 273,905.80, 410,858.70 and 263,408.20 is: 395,112.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,905.80 : 410,858.70 = 263,408.20 : x
  2. Step 2: Convert to fraction form
    273,905.80/410,858.70 = 263,408.20/x
  3. Step 3: Cross multiply
    273,905.80x = 410,858.70 × 263,408.20
  4. Step 4: Simplify right side
    273,905.80x = 108,223,550,621.34
  5. Step 5: Solve for x
    x = 108,223,550,621.34/273,905.80
  6. Step 6: Final answer
    x = 395,112.30

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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.