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Finding the Fourth Proportional to 322,051.20, 483,076.80 and 203,337.60

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Solution

The fourth proportional to 322,051.20, 483,076.80 and 203,337.60 is: 305,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,051.20 : 483,076.80 = 203,337.60 : x
  2. Step 2: Convert to fraction form
    322,051.20/483,076.80 = 203,337.60/x
  3. Step 3: Cross multiply
    322,051.20x = 483,076.80 × 203,337.60
  4. Step 4: Simplify right side
    322,051.20x = 98,227,677,127.68
  5. Step 5: Solve for x
    x = 98,227,677,127.68/322,051.20
  6. Step 6: Final answer
    x = 305,006.40

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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.