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Finding the Fourth Proportional to 355,595.20, 533,392.80 and 267,467.20

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Solution

The fourth proportional to 355,595.20, 533,392.80 and 267,467.20 is: 401,200.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,595.20 : 533,392.80 = 267,467.20 : x
  2. Step 2: Convert to fraction form
    355,595.20/533,392.80 = 267,467.20/x
  3. Step 3: Cross multiply
    355,595.20x = 533,392.80 × 267,467.20
  4. Step 4: Simplify right side
    355,595.20x = 142,665,078,716.16
  5. Step 5: Solve for x
    x = 142,665,078,716.16/355,595.20
  6. Step 6: Final answer
    x = 401,200.80

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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.