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Finding the Fourth Proportional to 206,891.60, 310,337.40 and 197,268.80

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Solution

The fourth proportional to 206,891.60, 310,337.40 and 197,268.80 is: 295,903.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,891.60 : 310,337.40 = 197,268.80 : x
  2. Step 2: Convert to fraction form
    206,891.60/310,337.40 = 197,268.80/x
  3. Step 3: Cross multiply
    206,891.60x = 310,337.40 × 197,268.80
  4. Step 4: Simplify right side
    206,891.60x = 61,219,886,493.12
  5. Step 5: Solve for x
    x = 61,219,886,493.12/206,891.60
  6. Step 6: Final answer
    x = 295,903.20

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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.