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Finding the Fourth Proportional to 503,369.22, 694,493.16 and 285,541.98

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Solution

The fourth proportional to 503,369.22, 694,493.16 and 285,541.98 is: 393,959.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,369.22 : 694,493.16 = 285,541.98 : x
  2. Step 2: Convert to fraction form
    503,369.22/694,493.16 = 285,541.98/x
  3. Step 3: Cross multiply
    503,369.22x = 694,493.16 × 285,541.98
  4. Step 4: Simplify right side
    503,369.22x = 198,306,952,002.86
  5. Step 5: Solve for x
    x = 198,306,952,002.86/503,369.22
  6. Step 6: Final answer
    x = 393,959.23

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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.