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Finding the Fourth Proportional to 354,324.77, 488,961.60 and 193,181.21

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Solution

The fourth proportional to 354,324.77, 488,961.60 and 193,181.21 is: 266,586.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,324.77 : 488,961.60 = 193,181.21 : x
  2. Step 2: Convert to fraction form
    354,324.77/488,961.60 = 193,181.21/x
  3. Step 3: Cross multiply
    354,324.77x = 488,961.60 × 193,181.21
  4. Step 4: Simplify right side
    354,324.77x = 94,458,193,531.54
  5. Step 5: Solve for x
    x = 94,458,193,531.54/354,324.77
  6. Step 6: Final answer
    x = 266,586.48

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1.5x scale

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.