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Finding the Fourth Proportional to 358,190.32, 494,287.05 and 197,035.15

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Solution

The fourth proportional to 358,190.32, 494,287.05 and 197,035.15 is: 271,899.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,190.32 : 494,287.05 = 197,035.15 : x
  2. Step 2: Convert to fraction form
    358,190.32/494,287.05 = 197,035.15/x
  3. Step 3: Cross multiply
    358,190.32x = 494,287.05 × 197,035.15
  4. Step 4: Simplify right side
    358,190.32x = 97,391,921,065.21
  5. Step 5: Solve for x
    x = 97,391,921,065.21/358,190.32
  6. Step 6: Final answer
    x = 271,899.93

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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.