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Finding the Fourth Proportional to 358,627.34, 494,739.48 and 231,343.94

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Solution

The fourth proportional to 358,627.34, 494,739.48 and 231,343.94 is: 319,147.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,627.34 : 494,739.48 = 231,343.94 : x
  2. Step 2: Convert to fraction form
    358,627.34/494,739.48 = 231,343.94/x
  3. Step 3: Cross multiply
    358,627.34x = 494,739.48 × 231,343.94
  4. Step 4: Simplify right side
    358,627.34x = 114,454,980,576.75
  5. Step 5: Solve for x
    x = 114,454,980,576.75/358,627.34
  6. Step 6: Final answer
    x = 319,147.39

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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.