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Finding the Fourth Proportional to 357,998.18, 494,039.27 and 196,863.62

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Solution

The fourth proportional to 357,998.18, 494,039.27 and 196,863.62 is: 271,672.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,998.18 : 494,039.27 = 196,863.62 : x
  2. Step 2: Convert to fraction form
    357,998.18/494,039.27 = 196,863.62/x
  3. Step 3: Cross multiply
    357,998.18x = 494,039.27 × 196,863.62
  4. Step 4: Simplify right side
    357,998.18x = 97,258,358,130.04
  5. Step 5: Solve for x
    x = 97,258,358,130.04/357,998.18
  6. Step 6: Final answer
    x = 271,672.77

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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.