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Finding the Fourth Proportional to 518,650.60, 715,027.62 and 327,568.36

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Solution

The fourth proportional to 518,650.60, 715,027.62 and 327,568.36 is: 451,595.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,650.60 : 715,027.62 = 327,568.36 : x
  2. Step 2: Convert to fraction form
    518,650.60/715,027.62 = 327,568.36/x
  3. Step 3: Cross multiply
    518,650.60x = 715,027.62 × 327,568.36
  4. Step 4: Simplify right side
    518,650.60x = 234,220,424,838.10
  5. Step 5: Solve for x
    x = 234,220,424,838.10/518,650.60
  6. Step 6: Final answer
    x = 451,595.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.