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Finding the Fourth Proportional to 217,359.60, 326,039.40 and 196,364.40

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Solution

The fourth proportional to 217,359.60, 326,039.40 and 196,364.40 is: 294,546.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,359.60 : 326,039.40 = 196,364.40 : x
  2. Step 2: Convert to fraction form
    217,359.60/326,039.40 = 196,364.40/x
  3. Step 3: Cross multiply
    217,359.60x = 326,039.40 × 196,364.40
  4. Step 4: Simplify right side
    217,359.60x = 64,022,531,157.36
  5. Step 5: Solve for x
    x = 64,022,531,157.36/217,359.60
  6. Step 6: Final answer
    x = 294,546.60

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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.