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Finding the Fourth Proportional to 488,093.78, 673,576.58 and 281,248.14

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Solution

The fourth proportional to 488,093.78, 673,576.58 and 281,248.14 is: 388,126.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,093.78 : 673,576.58 = 281,248.14 : x
  2. Step 2: Convert to fraction form
    488,093.78/673,576.58 = 281,248.14/x
  3. Step 3: Cross multiply
    488,093.78x = 673,576.58 × 281,248.14
  4. Step 4: Simplify right side
    488,093.78x = 189,442,160,272.56
  5. Step 5: Solve for x
    x = 189,442,160,272.56/488,093.78
  6. Step 6: Final answer
    x = 388,126.56

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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.