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Finding the Fourth Proportional to 358,213.32, 494,321.86 and 197,066.64

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Solution

The fourth proportional to 358,213.32, 494,321.86 and 197,066.64 is: 271,945.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,213.32 : 494,321.86 = 197,066.64 : x
  2. Step 2: Convert to fraction form
    358,213.32/494,321.86 = 197,066.64/x
  3. Step 3: Cross multiply
    358,213.32x = 494,321.86 × 197,066.64
  4. Step 4: Simplify right side
    358,213.32x = 97,414,348,028.75
  5. Step 5: Solve for x
    x = 97,414,348,028.75/358,213.32
  6. Step 6: Final answer
    x = 271,945.07

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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.