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Finding the Fourth Proportional to 293,375.78, 404,728.32 and 191,377.76

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Solution

The fourth proportional to 293,375.78, 404,728.32 and 191,377.76 is: 264,016.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,375.78 : 404,728.32 = 191,377.76 : x
  2. Step 2: Convert to fraction form
    293,375.78/404,728.32 = 191,377.76/x
  3. Step 3: Cross multiply
    293,375.78x = 404,728.32 × 191,377.76
  4. Step 4: Simplify right side
    293,375.78x = 77,455,999,290.16
  5. Step 5: Solve for x
    x = 77,455,999,290.16/293,375.78
  6. Step 6: Final answer
    x = 264,016.34

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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.