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Finding the Fourth Proportional to 463,279.80, 694,919.70 and 130,855.80

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Solution

The fourth proportional to 463,279.80, 694,919.70 and 130,855.80 is: 196,283.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,279.80 : 694,919.70 = 130,855.80 : x
  2. Step 2: Convert to fraction form
    463,279.80/694,919.70 = 130,855.80/x
  3. Step 3: Cross multiply
    463,279.80x = 694,919.70 × 130,855.80
  4. Step 4: Simplify right side
    463,279.80x = 90,934,273,279.26
  5. Step 5: Solve for x
    x = 90,934,273,279.26/463,279.80
  6. Step 6: Final answer
    x = 196,283.70

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Similar ratio
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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.