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Finding the Fourth Proportional to 519,608.25, 779,435.06 and 164,648.43

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Solution

The fourth proportional to 519,608.25, 779,435.06 and 164,648.43 is: 246,979.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,608.25 : 779,435.06 = 164,648.43 : x
  2. Step 2: Convert to fraction form
    519,608.25/779,435.06 = 164,648.43/x
  3. Step 3: Cross multiply
    519,608.25x = 779,435.06 × 164,648.43
  4. Step 4: Simplify right side
    519,608.25x = 128,332,758,092.71
  5. Step 5: Solve for x
    x = 128,332,758,092.71/519,608.25
  6. Step 6: Final answer
    x = 246,979.83

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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.