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Finding the Fourth Proportional to 358,612.94, 494,629.98 and 231,165.52

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Solution

The fourth proportional to 358,612.94, 494,629.98 and 231,165.52 is: 318,843.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,612.94 : 494,629.98 = 231,165.52 : x
  2. Step 2: Convert to fraction form
    358,612.94/494,629.98 = 231,165.52/x
  3. Step 3: Cross multiply
    358,612.94x = 494,629.98 × 231,165.52
  4. Step 4: Simplify right side
    358,612.94x = 114,341,393,936.85
  5. Step 5: Solve for x
    x = 114,341,393,936.85/358,612.94
  6. Step 6: Final answer
    x = 318,843.47

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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.