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Finding the Fourth Proportional to 335,330.52, 502,997 and 318,512.48

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Solution

The fourth proportional to 335,330.52, 502,997 and 318,512.48 is: 477,769.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,330.52 : 502,997 = 318,512.48 : x
  2. Step 2: Convert to fraction form
    335,330.52/502,997 = 318,512.48/x
  3. Step 3: Cross multiply
    335,330.52x = 502,997 × 318,512.48
  4. Step 4: Simplify right side
    335,330.52x = 160,210,821,902.56
  5. Step 5: Solve for x
    x = 160,210,821,902.56/335,330.52
  6. Step 6: Final answer
    x = 477,769.88

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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.