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Finding the Fourth Proportional to 574,538.31, 792,868.37 and 319,894.97

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Solution

The fourth proportional to 574,538.31, 792,868.37 and 319,894.97 is: 441,458.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,538.31 : 792,868.37 = 319,894.97 : x
  2. Step 2: Convert to fraction form
    574,538.31/792,868.37 = 319,894.97/x
  3. Step 3: Cross multiply
    574,538.31x = 792,868.37 × 319,894.97
  4. Step 4: Simplify right side
    574,538.31x = 253,634,597,871.28
  5. Step 5: Solve for x
    x = 253,634,597,871.28/574,538.31
  6. Step 6: Final answer
    x = 441,458.11

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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.