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Finding the Fourth Proportional to 358,000.56, 494,023.86 and 196,862.40

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Solution

The fourth proportional to 358,000.56, 494,023.86 and 196,862.40 is: 271,660.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,000.56 : 494,023.86 = 196,862.40 : x
  2. Step 2: Convert to fraction form
    358,000.56/494,023.86 = 196,862.40/x
  3. Step 3: Cross multiply
    358,000.56x = 494,023.86 × 196,862.40
  4. Step 4: Simplify right side
    358,000.56x = 97,254,722,736.86
  5. Step 5: Solve for x
    x = 97,254,722,736.86/358,000.56
  6. Step 6: Final answer
    x = 271,660.81

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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.