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Finding the Fourth Proportional to 574,192.80, 792,369.54 and 319,538.52

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Solution

The fourth proportional to 574,192.80, 792,369.54 and 319,538.52 is: 440,953.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,192.80 : 792,369.54 = 319,538.52 : x
  2. Step 2: Convert to fraction form
    574,192.80/792,369.54 = 319,538.52/x
  3. Step 3: Cross multiply
    574,192.80x = 792,369.54 × 319,538.52
  4. Step 4: Simplify right side
    574,192.80x = 253,192,590,104.68
  5. Step 5: Solve for x
    x = 253,192,590,104.68/574,192.80
  6. Step 6: Final answer
    x = 440,953.96

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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.