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Finding the Fourth Proportional to 478,601.15, 718,180.79 and 179,291.97

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Solution

The fourth proportional to 478,601.15, 718,180.79 and 179,291.97 is: 269,042.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,601.15 : 718,180.79 = 179,291.97 : x
  2. Step 2: Convert to fraction form
    478,601.15/718,180.79 = 179,291.97/x
  3. Step 3: Cross multiply
    478,601.15x = 718,180.79 × 179,291.97
  4. Step 4: Simplify right side
    478,601.15x = 128,764,047,758.80
  5. Step 5: Solve for x
    x = 128,764,047,758.80/478,601.15
  6. Step 6: Final answer
    x = 269,042.50

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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.