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Finding the Fourth Proportional to 355,682.60, 534,138.30 and 189,794.60

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Solution

The fourth proportional to 355,682.60, 534,138.30 and 189,794.60 is: 285,019.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,682.60 : 534,138.30 = 189,794.60 : x
  2. Step 2: Convert to fraction form
    355,682.60/534,138.30 = 189,794.60/x
  3. Step 3: Cross multiply
    355,682.60x = 534,138.30 × 189,794.60
  4. Step 4: Simplify right side
    355,682.60x = 101,376,564,993.18
  5. Step 5: Solve for x
    x = 101,376,564,993.18/355,682.60
  6. Step 6: Final answer
    x = 285,019.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.