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Finding the Fourth Proportional to 384,540.36, 530,662.68 and 223,489.68

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Solution

The fourth proportional to 384,540.36, 530,662.68 and 223,489.68 is: 308,414.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,540.36 : 530,662.68 = 223,489.68 : x
  2. Step 2: Convert to fraction form
    384,540.36/530,662.68 = 223,489.68/x
  3. Step 3: Cross multiply
    384,540.36x = 530,662.68 × 223,489.68
  4. Step 4: Simplify right side
    384,540.36x = 118,597,632,541.14
  5. Step 5: Solve for x
    x = 118,597,632,541.14/384,540.36
  6. Step 6: Final answer
    x = 308,414.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.