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Finding the Fourth Proportional to 494,362.92, 681,729.54 and 372,147.96

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Solution

The fourth proportional to 494,362.92, 681,729.54 and 372,147.96 is: 513,194.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,362.92 : 681,729.54 = 372,147.96 : x
  2. Step 2: Convert to fraction form
    494,362.92/681,729.54 = 372,147.96/x
  3. Step 3: Cross multiply
    494,362.92x = 681,729.54 × 372,147.96
  4. Step 4: Simplify right side
    494,362.92x = 253,704,257,582.74
  5. Step 5: Solve for x
    x = 253,704,257,582.74/494,362.92
  6. Step 6: Final answer
    x = 513,194.35

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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.