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Finding the Third Proportional to 889,688 and 1,378,774

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Solution

The third proportional to 889,688 and 1,378,774 is: 2,136,724.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,688 : 1,378,774 = 1,378,774 : x
  2. Step 2: Convert to fraction form
    889,688/1,378,774 = 1,378,774/x
  3. Step 3: Cross multiply
    889,688x = 1,378,774 × 1,378,774
  4. Step 4: Simplify right side
    889,688x = 1,901,017,743,076
  5. Step 5: Solve for x
    x = 1,901,017,743,076/889,688
  6. Step 6: Final answer
    x = 2,136,724.05

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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.