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Finding the Fourth Proportional to 303,616.44, 455,423.70 and 82,000.44

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Solution

The fourth proportional to 303,616.44, 455,423.70 and 82,000.44 is: 123,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,616.44 : 455,423.70 = 82,000.44 : x
  2. Step 2: Convert to fraction form
    303,616.44/455,423.70 = 82,000.44/x
  3. Step 3: Cross multiply
    303,616.44x = 455,423.70 × 82,000.44
  4. Step 4: Simplify right side
    303,616.44x = 37,344,943,786.43
  5. Step 5: Solve for x
    x = 37,344,943,786.43/303,616.44
  6. Step 6: Final answer
    x = 123,000.40

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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.