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Finding the Fourth Proportional to 399,794.60, 599,473.20 and 162,869.60

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Solution

The fourth proportional to 399,794.60, 599,473.20 and 162,869.60 is: 244,215.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,794.60 : 599,473.20 = 162,869.60 : x
  2. Step 2: Convert to fraction form
    399,794.60/599,473.20 = 162,869.60/x
  3. Step 3: Cross multiply
    399,794.60x = 599,473.20 × 162,869.60
  4. Step 4: Simplify right side
    399,794.60x = 97,635,960,294.72
  5. Step 5: Solve for x
    x = 97,635,960,294.72/399,794.60
  6. Step 6: Final answer
    x = 244,215.31

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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.