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Finding the Fourth Proportional to 300,621.70, 414,857.04 and 169,785.03

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Solution

The fourth proportional to 300,621.70, 414,857.04 and 169,785.03 is: 234,302.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,621.70 : 414,857.04 = 169,785.03 : x
  2. Step 2: Convert to fraction form
    300,621.70/414,857.04 = 169,785.03/x
  3. Step 3: Cross multiply
    300,621.70x = 414,857.04 × 169,785.03
  4. Step 4: Simplify right side
    300,621.70x = 70,436,514,982.11
  5. Step 5: Solve for x
    x = 70,436,514,982.11/300,621.70
  6. Step 6: Final answer
    x = 234,302.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.