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Finding the Third Proportional to 354,922 and 774,076

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Solution

The third proportional to 354,922 and 774,076 is: 1,688,240.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,922 : 774,076 = 774,076 : x
  2. Step 2: Convert to fraction form
    354,922/774,076 = 774,076/x
  3. Step 3: Cross multiply
    354,922x = 774,076 × 774,076
  4. Step 4: Simplify right side
    354,922x = 599,193,653,776
  5. Step 5: Solve for x
    x = 599,193,653,776/354,922
  6. Step 6: Final answer
    x = 1,688,240.38

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.