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Finding the Fourth Proportional to 354,245.76, 488,858.64 and 193,101.12

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Solution

The fourth proportional to 354,245.76, 488,858.64 and 193,101.12 is: 266,479.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,245.76 : 488,858.64 = 193,101.12 : x
  2. Step 2: Convert to fraction form
    354,245.76/488,858.64 = 193,101.12/x
  3. Step 3: Cross multiply
    354,245.76x = 488,858.64 × 193,101.12
  4. Step 4: Simplify right side
    354,245.76x = 94,399,150,905.68
  5. Step 5: Solve for x
    x = 94,399,150,905.68/354,245.76
  6. Step 6: Final answer
    x = 266,479.27

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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.