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Finding the Fourth Proportional to 324,252, 485,978.64 and 230,248.80

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Solution

The fourth proportional to 324,252, 485,978.64 and 230,248.80 is: 345,089.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,252 : 485,978.64 = 230,248.80 : x
  2. Step 2: Convert to fraction form
    324,252/485,978.64 = 230,248.80/x
  3. Step 3: Cross multiply
    324,252x = 485,978.64 × 230,248.80
  4. Step 4: Simplify right side
    324,252x = 111,895,998,685.63
  5. Step 5: Solve for x
    x = 111,895,998,685.63/324,252
  6. Step 6: Final answer
    x = 345,089.62

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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.