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Finding the Fourth Proportional to 313,797.17, 470,178.36 and 180,789.23

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Solution

The fourth proportional to 313,797.17, 470,178.36 and 180,789.23 is: 270,885.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,797.17 : 470,178.36 = 180,789.23 : x
  2. Step 2: Convert to fraction form
    313,797.17/470,178.36 = 180,789.23/x
  3. Step 3: Cross multiply
    313,797.17x = 470,178.36 × 180,789.23
  4. Step 4: Simplify right side
    313,797.17x = 85,003,181,316.17
  5. Step 5: Solve for x
    x = 85,003,181,316.17/313,797.17
  6. Step 6: Final answer
    x = 270,885.75

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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.