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Finding the Third Proportional to 777,688 and 1,617,453

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Solution

The third proportional to 777,688 and 1,617,453 is: 3,364,015.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,688 : 1,617,453 = 1,617,453 : x
  2. Step 2: Convert to fraction form
    777,688/1,617,453 = 1,617,453/x
  3. Step 3: Cross multiply
    777,688x = 1,617,453 × 1,617,453
  4. Step 4: Simplify right side
    777,688x = 2,616,154,207,209
  5. Step 5: Solve for x
    x = 2,616,154,207,209/777,688
  6. Step 6: Final answer
    x = 3,364,015.14

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.