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Finding the Fourth Proportional to 478,718.57, 718,096.08 and 179,167.61

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Solution

The fourth proportional to 478,718.57, 718,096.08 and 179,167.61 is: 268,758.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,718.57 : 718,096.08 = 179,167.61 : x
  2. Step 2: Convert to fraction form
    478,718.57/718,096.08 = 179,167.61/x
  3. Step 3: Cross multiply
    478,718.57x = 718,096.08 × 179,167.61
  4. Step 4: Simplify right side
    478,718.57x = 128,659,558,403.97
  5. Step 5: Solve for x
    x = 128,659,558,403.97/478,718.57
  6. Step 6: Final answer
    x = 268,758.24

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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.