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Finding the Fourth Proportional to 384,349.20, 577,906.20 and 323,523.60

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Solution

The fourth proportional to 384,349.20, 577,906.20 and 323,523.60 is: 486,449.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,349.20 : 577,906.20 = 323,523.60 : x
  2. Step 2: Convert to fraction form
    384,349.20/577,906.20 = 323,523.60/x
  3. Step 3: Cross multiply
    384,349.20x = 577,906.20 × 323,523.60
  4. Step 4: Simplify right side
    384,349.20x = 186,966,294,286.32
  5. Step 5: Solve for x
    x = 186,966,294,286.32/384,349.20
  6. Step 6: Final answer
    x = 486,449.03

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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.