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Finding the Fourth Proportional to 576,768.72, 865,173.86 and 216,906.58

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Solution

The fourth proportional to 576,768.72, 865,173.86 and 216,906.58 is: 325,367.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,768.72 : 865,173.86 = 216,906.58 : x
  2. Step 2: Convert to fraction form
    576,768.72/865,173.86 = 216,906.58/x
  3. Step 3: Cross multiply
    576,768.72x = 865,173.86 × 216,906.58
  4. Step 4: Simplify right side
    576,768.72x = 187,661,903,078.00
  5. Step 5: Solve for x
    x = 187,661,903,078.00/576,768.72
  6. Step 6: Final answer
    x = 325,367.68

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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.