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Finding the Fourth Proportional to 397,818.91, 548,608.49 and 267,291.74

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Solution

The fourth proportional to 397,818.91, 548,608.49 and 267,291.74 is: 368,606.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,818.91 : 548,608.49 = 267,291.74 : x
  2. Step 2: Convert to fraction form
    397,818.91/548,608.49 = 267,291.74/x
  3. Step 3: Cross multiply
    397,818.91x = 548,608.49 × 267,291.74
  4. Step 4: Simplify right side
    397,818.91x = 146,638,520,026.06
  5. Step 5: Solve for x
    x = 146,638,520,026.06/397,818.91
  6. Step 6: Final answer
    x = 368,606.21

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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.