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Finding the Fourth Proportional to 354,179.72, 488,761.62 and 193,033.64

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Solution

The fourth proportional to 354,179.72, 488,761.62 and 193,033.64 is: 266,382.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,179.72 : 488,761.62 = 193,033.64 : x
  2. Step 2: Convert to fraction form
    354,179.72/488,761.62 = 193,033.64/x
  3. Step 3: Cross multiply
    354,179.72x = 488,761.62 × 193,033.64
  4. Step 4: Simplify right side
    354,179.72x = 94,347,434,600.90
  5. Step 5: Solve for x
    x = 94,347,434,600.90/354,179.72
  6. Step 6: Final answer
    x = 266,382.94

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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.