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Finding the Fourth Proportional to 574,292.53, 792,523.69 and 319,638.25

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Solution

The fourth proportional to 574,292.53, 792,523.69 and 319,638.25 is: 441,100.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,292.53 : 792,523.69 = 319,638.25 : x
  2. Step 2: Convert to fraction form
    574,292.53/792,523.69 = 319,638.25/x
  3. Step 3: Cross multiply
    574,292.53x = 792,523.69 × 319,638.25
  4. Step 4: Simplify right side
    574,292.53x = 253,320,887,344.67
  5. Step 5: Solve for x
    x = 253,320,887,344.67/574,292.53
  6. Step 6: Final answer
    x = 441,100.79

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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.