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Finding the Fourth Proportional to 474,118.52, 654,626.21 and 293,078.66

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Solution

The fourth proportional to 474,118.52, 654,626.21 and 293,078.66 is: 404,660.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,118.52 : 654,626.21 = 293,078.66 : x
  2. Step 2: Convert to fraction form
    474,118.52/654,626.21 = 293,078.66/x
  3. Step 3: Cross multiply
    474,118.52x = 654,626.21 × 293,078.66
  4. Step 4: Simplify right side
    474,118.52x = 191,856,967,689.15
  5. Step 5: Solve for x
    x = 191,856,967,689.15/474,118.52
  6. Step 6: Final answer
    x = 404,660.36

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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.