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Finding the Fourth Proportional to 621,351.37, 932,029.26 and 189,073

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Solution

The fourth proportional to 621,351.37, 932,029.26 and 189,073 is: 283,610.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,351.37 : 932,029.26 = 189,073 : x
  2. Step 2: Convert to fraction form
    621,351.37/932,029.26 = 189,073/x
  3. Step 3: Cross multiply
    621,351.37x = 932,029.26 × 189,073
  4. Step 4: Simplify right side
    621,351.37x = 176,221,568,275.98
  5. Step 5: Solve for x
    x = 176,221,568,275.98/621,351.37
  6. Step 6: Final answer
    x = 283,610.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.