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Finding the Fourth Proportional to 454,626.80, 682,353.30 and 230,143.40

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Solution

The fourth proportional to 454,626.80, 682,353.30 and 230,143.40 is: 345,424.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,626.80 : 682,353.30 = 230,143.40 : x
  2. Step 2: Convert to fraction form
    454,626.80/682,353.30 = 230,143.40/x
  3. Step 3: Cross multiply
    454,626.80x = 682,353.30 × 230,143.40
  4. Step 4: Simplify right side
    454,626.80x = 157,039,108,463.22
  5. Step 5: Solve for x
    x = 157,039,108,463.22/454,626.80
  6. Step 6: Final answer
    x = 345,424.22

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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.