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Finding the Fourth Proportional to 355,107.20, 532,660.80 and 222,396.80

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Solution

The fourth proportional to 355,107.20, 532,660.80 and 222,396.80 is: 333,595.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,107.20 : 532,660.80 = 222,396.80 : x
  2. Step 2: Convert to fraction form
    355,107.20/532,660.80 = 222,396.80/x
  3. Step 3: Cross multiply
    355,107.20x = 532,660.80 × 222,396.80
  4. Step 4: Simplify right side
    355,107.20x = 118,462,057,405.44
  5. Step 5: Solve for x
    x = 118,462,057,405.44/355,107.20
  6. Step 6: Final answer
    x = 333,595.20

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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.