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Finding the Fourth Proportional to 335,460.30, 503,190.45 and 311,840.70

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Solution

The fourth proportional to 335,460.30, 503,190.45 and 311,840.70 is: 467,761.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,460.30 : 503,190.45 = 311,840.70 : x
  2. Step 2: Convert to fraction form
    335,460.30/503,190.45 = 311,840.70/x
  3. Step 3: Cross multiply
    335,460.30x = 503,190.45 × 311,840.70
  4. Step 4: Simplify right side
    335,460.30x = 156,915,262,161.32
  5. Step 5: Solve for x
    x = 156,915,262,161.32/335,460.30
  6. Step 6: Final answer
    x = 467,761.05

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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.