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Finding the Fourth Proportional to 397,066.66, 548,079.69 and 254,211.46

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Solution

The fourth proportional to 397,066.66, 548,079.69 and 254,211.46 is: 350,893.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,066.66 : 548,079.69 = 254,211.46 : x
  2. Step 2: Convert to fraction form
    397,066.66/548,079.69 = 254,211.46/x
  3. Step 3: Cross multiply
    397,066.66x = 548,079.69 × 254,211.46
  4. Step 4: Simplify right side
    397,066.66x = 139,328,138,191.25
  5. Step 5: Solve for x
    x = 139,328,138,191.25/397,066.66
  6. Step 6: Final answer
    x = 350,893.57

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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.