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Finding the Fourth Proportional to 341,786.20, 512,679.30 and 201,818.20

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Solution

The fourth proportional to 341,786.20, 512,679.30 and 201,818.20 is: 302,727.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,786.20 : 512,679.30 = 201,818.20 : x
  2. Step 2: Convert to fraction form
    341,786.20/512,679.30 = 201,818.20/x
  3. Step 3: Cross multiply
    341,786.20x = 512,679.30 × 201,818.20
  4. Step 4: Simplify right side
    341,786.20x = 103,468,013,503.26
  5. Step 5: Solve for x
    x = 103,468,013,503.26/341,786.20
  6. Step 6: Final answer
    x = 302,727.30

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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.