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Finding the Fourth Proportional to 664,358.80, 996,343.80 and 237,845.20

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Solution

The fourth proportional to 664,358.80, 996,343.80 and 237,845.20 is: 356,698.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,358.80 : 996,343.80 = 237,845.20 : x
  2. Step 2: Convert to fraction form
    664,358.80/996,343.80 = 237,845.20/x
  3. Step 3: Cross multiply
    664,358.80x = 996,343.80 × 237,845.20
  4. Step 4: Simplify right side
    664,358.80x = 236,975,590,379.76
  5. Step 5: Solve for x
    x = 236,975,590,379.76/664,358.80
  6. Step 6: Final answer
    x = 356,698.20

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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.