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Finding the Fourth Proportional to 516,571.52, 774,874.56 and 179,615.07

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Solution

The fourth proportional to 516,571.52, 774,874.56 and 179,615.07 is: 269,428.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,571.52 : 774,874.56 = 179,615.07 : x
  2. Step 2: Convert to fraction form
    516,571.52/774,874.56 = 179,615.07/x
  3. Step 3: Cross multiply
    516,571.52x = 774,874.56 × 179,615.07
  4. Step 4: Simplify right side
    516,571.52x = 139,179,148,335.62
  5. Step 5: Solve for x
    x = 139,179,148,335.62/516,571.52
  6. Step 6: Final answer
    x = 269,428.62

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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.