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Finding the Fourth Proportional to 313,230.80, 469,846.20 and 180,520.40

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Solution

The fourth proportional to 313,230.80, 469,846.20 and 180,520.40 is: 270,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,230.80 : 469,846.20 = 180,520.40 : x
  2. Step 2: Convert to fraction form
    313,230.80/469,846.20 = 180,520.40/x
  3. Step 3: Cross multiply
    313,230.80x = 469,846.20 × 180,520.40
  4. Step 4: Simplify right side
    313,230.80x = 84,816,823,962.48
  5. Step 5: Solve for x
    x = 84,816,823,962.48/313,230.80
  6. Step 6: Final answer
    x = 270,780.60

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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.