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Finding the Fourth Proportional to 351,454.40, 527,531.52 and 193,757.12

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Solution

The fourth proportional to 351,454.40, 527,531.52 and 193,757.12 is: 290,828.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,454.40 : 527,531.52 = 193,757.12 : x
  2. Step 2: Convert to fraction form
    351,454.40/527,531.52 = 193,757.12/x
  3. Step 3: Cross multiply
    351,454.40x = 527,531.52 × 193,757.12
  4. Step 4: Simplify right side
    351,454.40x = 102,212,988,024.42
  5. Step 5: Solve for x
    x = 102,212,988,024.42/351,454.40
  6. Step 6: Final answer
    x = 290,828.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.