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Finding the Fourth Proportional to 371,393.70, 511,999.65 and 263,924.52

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Solution

The fourth proportional to 371,393.70, 511,999.65 and 263,924.52 is: 363,843.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,393.70 : 511,999.65 = 263,924.52 : x
  2. Step 2: Convert to fraction form
    371,393.70/511,999.65 = 263,924.52/x
  3. Step 3: Cross multiply
    371,393.70x = 511,999.65 × 263,924.52
  4. Step 4: Simplify right side
    371,393.70x = 135,129,261,866.42
  5. Step 5: Solve for x
    x = 135,129,261,866.42/371,393.70
  6. Step 6: Final answer
    x = 363,843.71

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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.