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Finding the Fourth Proportional to 552,458.86, 762,401.10 and 326,104.36

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Solution

The fourth proportional to 552,458.86, 762,401.10 and 326,104.36 is: 450,028.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,458.86 : 762,401.10 = 326,104.36 : x
  2. Step 2: Convert to fraction form
    552,458.86/762,401.10 = 326,104.36/x
  3. Step 3: Cross multiply
    552,458.86x = 762,401.10 × 326,104.36
  4. Step 4: Simplify right side
    552,458.86x = 248,622,322,778.80
  5. Step 5: Solve for x
    x = 248,622,322,778.80/552,458.86
  6. Step 6: Final answer
    x = 450,028.66

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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.