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Finding the Fourth Proportional to 358,197.57, 494,297.06 and 197,042.40

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Solution

The fourth proportional to 358,197.57, 494,297.06 and 197,042.40 is: 271,909.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,197.57 : 494,297.06 = 197,042.40 : x
  2. Step 2: Convert to fraction form
    358,197.57/494,297.06 = 197,042.40/x
  3. Step 3: Cross multiply
    358,197.57x = 494,297.06 × 197,042.40
  4. Step 4: Simplify right side
    358,197.57x = 97,397,479,015.34
  5. Step 5: Solve for x
    x = 97,397,479,015.34/358,197.57
  6. Step 6: Final answer
    x = 271,909.94

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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.