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Finding the Fourth Proportional to 368,635.25, 508,873.59 and 247,846.64

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Solution

The fourth proportional to 368,635.25, 508,873.59 and 247,846.64 is: 342,133.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,635.25 : 508,873.59 = 247,846.64 : x
  2. Step 2: Convert to fraction form
    368,635.25/508,873.59 = 247,846.64/x
  3. Step 3: Cross multiply
    368,635.25x = 508,873.59 × 247,846.64
  4. Step 4: Simplify right side
    368,635.25x = 126,122,606,921.87
  5. Step 5: Solve for x
    x = 126,122,606,921.87/368,635.25
  6. Step 6: Final answer
    x = 342,133.87

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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.