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Finding the Fourth Proportional to 568,976.78, 785,203.80 and 314,344.37

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Solution

The fourth proportional to 568,976.78, 785,203.80 and 314,344.37 is: 433,803.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,976.78 : 785,203.80 = 314,344.37 : x
  2. Step 2: Convert to fraction form
    568,976.78/785,203.80 = 314,344.37/x
  3. Step 3: Cross multiply
    568,976.78x = 785,203.80 × 314,344.37
  4. Step 4: Simplify right side
    568,976.78x = 246,824,393,832.61
  5. Step 5: Solve for x
    x = 246,824,393,832.61/568,976.78
  6. Step 6: Final answer
    x = 433,803.98

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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.