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Finding the Third Proportional to 776,361 and 1,689,409.50

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Solution

The third proportional to 776,361 and 1,689,409.50 is: 3,676,259.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,361 : 1,689,409.50 = 1,689,409.50 : x
  2. Step 2: Convert to fraction form
    776,361/1,689,409.50 = 1,689,409.50/x
  3. Step 3: Cross multiply
    776,361x = 1,689,409.50 × 1,689,409.50
  4. Step 4: Simplify right side
    776,361x = 2,854,104,458,690.25
  5. Step 5: Solve for x
    x = 2,854,104,458,690.25/776,361
  6. Step 6: Final answer
    x = 3,676,259.44

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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.