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Finding the Fourth Proportional to 340,396.83, 469,676.48 and 197,148.33

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Solution

The fourth proportional to 340,396.83, 469,676.48 and 197,148.33 is: 272,023.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,396.83 : 469,676.48 = 197,148.33 : x
  2. Step 2: Convert to fraction form
    340,396.83/469,676.48 = 197,148.33/x
  3. Step 3: Cross multiply
    340,396.83x = 469,676.48 × 197,148.33
  4. Step 4: Simplify right side
    340,396.83x = 92,595,932,686.54
  5. Step 5: Solve for x
    x = 92,595,932,686.54/340,396.83
  6. Step 6: Final answer
    x = 272,023.49

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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.