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Finding the Fourth Proportional to 323,467.20, 485,200.80 and 294,436.80

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Solution

The fourth proportional to 323,467.20, 485,200.80 and 294,436.80 is: 441,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,467.20 : 485,200.80 = 294,436.80 : x
  2. Step 2: Convert to fraction form
    323,467.20/485,200.80 = 294,436.80/x
  3. Step 3: Cross multiply
    323,467.20x = 485,200.80 × 294,436.80
  4. Step 4: Simplify right side
    323,467.20x = 142,860,970,909.44
  5. Step 5: Solve for x
    x = 142,860,970,909.44/323,467.20
  6. Step 6: Final answer
    x = 441,655.20

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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.