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Finding the Fourth Proportional to 335,002.80, 502,504.20 and 311,383.20

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Solution

The fourth proportional to 335,002.80, 502,504.20 and 311,383.20 is: 467,074.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,002.80 : 502,504.20 = 311,383.20 : x
  2. Step 2: Convert to fraction form
    335,002.80/502,504.20 = 311,383.20/x
  3. Step 3: Cross multiply
    335,002.80x = 502,504.20 × 311,383.20
  4. Step 4: Simplify right side
    335,002.80x = 156,471,365,809.44
  5. Step 5: Solve for x
    x = 156,471,365,809.44/335,002.80
  6. Step 6: Final answer
    x = 467,074.80

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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.