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Finding the Fourth Proportional to 310,221.99, 464,456.57 and 252,956.43

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Solution

The fourth proportional to 310,221.99, 464,456.57 and 252,956.43 is: 378,720.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,221.99 : 464,456.57 = 252,956.43 : x
  2. Step 2: Convert to fraction form
    310,221.99/464,456.57 = 252,956.43/x
  3. Step 3: Cross multiply
    310,221.99x = 464,456.57 × 252,956.43
  4. Step 4: Simplify right side
    310,221.99x = 117,487,274,572.46
  5. Step 5: Solve for x
    x = 117,487,274,572.46/310,221.99
  6. Step 6: Final answer
    x = 378,720.01

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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.