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Finding the Third Proportional to 395,784 and 613,224

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Solution

The third proportional to 395,784 and 613,224 is: 950,123.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,784 : 613,224 = 613,224 : x
  2. Step 2: Convert to fraction form
    395,784/613,224 = 613,224/x
  3. Step 3: Cross multiply
    395,784x = 613,224 × 613,224
  4. Step 4: Simplify right side
    395,784x = 376,043,674,176
  5. Step 5: Solve for x
    x = 376,043,674,176/395,784
  6. Step 6: Final answer
    x = 950,123.49

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.