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Finding the Third Proportional to 476,908 and 668,484

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Solution

The third proportional to 476,908 and 668,484 is: 937,016.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,908 : 668,484 = 668,484 : x
  2. Step 2: Convert to fraction form
    476,908/668,484 = 668,484/x
  3. Step 3: Cross multiply
    476,908x = 668,484 × 668,484
  4. Step 4: Simplify right side
    476,908x = 446,870,858,256
  5. Step 5: Solve for x
    x = 446,870,858,256/476,908
  6. Step 6: Final answer
    x = 937,016.91

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.