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Finding the Fourth Proportional to 366,318.20, 548,821.20 and 313,830.20

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Solution

The fourth proportional to 366,318.20, 548,821.20 and 313,830.20 is: 470,183.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,318.20 : 548,821.20 = 313,830.20 : x
  2. Step 2: Convert to fraction form
    366,318.20/548,821.20 = 313,830.20/x
  3. Step 3: Cross multiply
    366,318.20x = 548,821.20 × 313,830.20
  4. Step 4: Simplify right side
    366,318.20x = 172,236,666,960.24
  5. Step 5: Solve for x
    x = 172,236,666,960.24/366,318.20
  6. Step 6: Final answer
    x = 470,183.21

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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.