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Finding the Third Proportional to 197,284 and 431,476

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Solution

The third proportional to 197,284 and 431,476 is: 943,672.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,284 : 431,476 = 431,476 : x
  2. Step 2: Convert to fraction form
    197,284/431,476 = 431,476/x
  3. Step 3: Cross multiply
    197,284x = 431,476 × 431,476
  4. Step 4: Simplify right side
    197,284x = 186,171,538,576
  5. Step 5: Solve for x
    x = 186,171,538,576/197,284
  6. Step 6: Final answer
    x = 943,672.77

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.