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Finding the Fourth Proportional to 478,833.10, 717,921.60 and 226,234.60

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Solution

The fourth proportional to 478,833.10, 717,921.60 and 226,234.60 is: 339,196.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,833.10 : 717,921.60 = 226,234.60 : x
  2. Step 2: Convert to fraction form
    478,833.10/717,921.60 = 226,234.60/x
  3. Step 3: Cross multiply
    478,833.10x = 717,921.60 × 226,234.60
  4. Step 4: Simplify right side
    478,833.10x = 162,418,706,007.36
  5. Step 5: Solve for x
    x = 162,418,706,007.36/478,833.10
  6. Step 6: Final answer
    x = 339,196.91

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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.