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Finding the Fourth Proportional to 574,292.06, 792,509.56 and 319,637.78

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Solution

The fourth proportional to 574,292.06, 792,509.56 and 319,637.78 is: 441,092.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,292.06 : 792,509.56 = 319,637.78 : x
  2. Step 2: Convert to fraction form
    574,292.06/792,509.56 = 319,637.78/x
  3. Step 3: Cross multiply
    574,292.06x = 792,509.56 × 319,637.78
  4. Step 4: Simplify right side
    574,292.06x = 253,315,991,625.54
  5. Step 5: Solve for x
    x = 253,315,991,625.54/574,292.06
  6. Step 6: Final answer
    x = 441,092.63

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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.