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Finding the Fourth Proportional to 203,497.40, 304,662.90 and 197,665.40

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Solution

The fourth proportional to 203,497.40, 304,662.90 and 197,665.40 is: 295,931.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,497.40 : 304,662.90 = 197,665.40 : x
  2. Step 2: Convert to fraction form
    203,497.40/304,662.90 = 197,665.40/x
  3. Step 3: Cross multiply
    203,497.40x = 304,662.90 × 197,665.40
  4. Step 4: Simplify right side
    203,497.40x = 60,221,313,993.66
  5. Step 5: Solve for x
    x = 60,221,313,993.66/203,497.40
  6. Step 6: Final answer
    x = 295,931.61

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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.