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Finding the Fourth Proportional to 576,996.40, 865,309.92 and 192,662.74

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Solution

The fourth proportional to 576,996.40, 865,309.92 and 192,662.74 is: 288,932.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,996.40 : 865,309.92 = 192,662.74 : x
  2. Step 2: Convert to fraction form
    576,996.40/865,309.92 = 192,662.74/x
  3. Step 3: Cross multiply
    576,996.40x = 865,309.92 × 192,662.74
  4. Step 4: Simplify right side
    576,996.40x = 166,712,980,136.38
  5. Step 5: Solve for x
    x = 166,712,980,136.38/576,996.40
  6. Step 6: Final answer
    x = 288,932.44

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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.