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Finding the Fourth Proportional to 352,165.39, 528,280.28 and 99,449.64

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Solution

The fourth proportional to 352,165.39, 528,280.28 and 99,449.64 is: 149,183.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,165.39 : 528,280.28 = 99,449.64 : x
  2. Step 2: Convert to fraction form
    352,165.39/528,280.28 = 99,449.64/x
  3. Step 3: Cross multiply
    352,165.39x = 528,280.28 × 99,449.64
  4. Step 4: Simplify right side
    352,165.39x = 52,537,285,234.42
  5. Step 5: Solve for x
    x = 52,537,285,234.42/352,165.39
  6. Step 6: Final answer
    x = 149,183.56

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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.