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Finding the Fourth Proportional to 341,431.92, 512,213.76 and 131,053.44

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Solution

The fourth proportional to 341,431.92, 512,213.76 and 131,053.44 is: 196,605.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,431.92 : 512,213.76 = 131,053.44 : x
  2. Step 2: Convert to fraction form
    341,431.92/512,213.76 = 131,053.44/x
  3. Step 3: Cross multiply
    341,431.92x = 512,213.76 × 131,053.44
  4. Step 4: Simplify right side
    341,431.92x = 67,127,375,263.33
  5. Step 5: Solve for x
    x = 67,127,375,263.33/341,431.92
  6. Step 6: Final answer
    x = 196,605.45

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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.