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Finding the Fourth Proportional to 341,442.40, 512,163.60 and 192,143.20

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Solution

The fourth proportional to 341,442.40, 512,163.60 and 192,143.20 is: 288,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,442.40 : 512,163.60 = 192,143.20 : x
  2. Step 2: Convert to fraction form
    341,442.40/512,163.60 = 192,143.20/x
  3. Step 3: Cross multiply
    341,442.40x = 512,163.60 × 192,143.20
  4. Step 4: Simplify right side
    341,442.40x = 98,408,753,027.52
  5. Step 5: Solve for x
    x = 98,408,753,027.52/341,442.40
  6. Step 6: Final answer
    x = 288,214.80

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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.