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Finding the Fourth Proportional to 358,338.41, 494,494.60 and 197,178.39

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Solution

The fourth proportional to 358,338.41, 494,494.60 and 197,178.39 is: 272,099.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,338.41 : 494,494.60 = 197,178.39 : x
  2. Step 2: Convert to fraction form
    358,338.41/494,494.60 = 197,178.39/x
  3. Step 3: Cross multiply
    358,338.41x = 494,494.60 × 197,178.39
  4. Step 4: Simplify right side
    358,338.41x = 97,503,649,091.69
  5. Step 5: Solve for x
    x = 97,503,649,091.69/358,338.41
  6. Step 6: Final answer
    x = 272,099.35

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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.