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Finding the Third Proportional to 196,248 and 310,908

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Solution

The third proportional to 196,248 and 310,908 is: 492,559.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,248 : 310,908 = 310,908 : x
  2. Step 2: Convert to fraction form
    196,248/310,908 = 310,908/x
  3. Step 3: Cross multiply
    196,248x = 310,908 × 310,908
  4. Step 4: Simplify right side
    196,248x = 96,663,784,464
  5. Step 5: Solve for x
    x = 96,663,784,464/196,248
  6. Step 6: Final answer
    x = 492,559.34

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.