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Finding the Fourth Proportional to 341,425.92, 512,140.80 and 131,013.12

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Solution

The fourth proportional to 341,425.92, 512,140.80 and 131,013.12 is: 196,520.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,425.92 : 512,140.80 = 131,013.12 : x
  2. Step 2: Convert to fraction form
    341,425.92/512,140.80 = 131,013.12/x
  3. Step 3: Cross multiply
    341,425.92x = 512,140.80 × 131,013.12
  4. Step 4: Simplify right side
    341,425.92x = 67,097,164,087.30
  5. Step 5: Solve for x
    x = 67,097,164,087.30/341,425.92
  6. Step 6: Final answer
    x = 196,520.42

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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.