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Finding the Fourth Proportional to 264,466.20, 396,043.20 and 211,978.20

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Solution

The fourth proportional to 264,466.20, 396,043.20 and 211,978.20 is: 317,441.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,466.20 : 396,043.20 = 211,978.20 : x
  2. Step 2: Convert to fraction form
    264,466.20/396,043.20 = 211,978.20/x
  3. Step 3: Cross multiply
    264,466.20x = 396,043.20 × 211,978.20
  4. Step 4: Simplify right side
    264,466.20x = 83,952,524,658.24
  5. Step 5: Solve for x
    x = 83,952,524,658.24/264,466.20
  6. Step 6: Final answer
    x = 317,441.41

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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.