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Finding the Fourth Proportional to 1,212,736, 1,673,553 and 668,922.52

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Solution

The fourth proportional to 1,212,736, 1,673,553 and 668,922.52 is: 923,100.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,736 : 1,673,553 = 668,922.52 : x
  2. Step 2: Convert to fraction form
    1,212,736/1,673,553 = 668,922.52/x
  3. Step 3: Cross multiply
    1,212,736x = 1,673,553 × 668,922.52
  4. Step 4: Simplify right side
    1,212,736x = 1,119,477,290,113.56
  5. Step 5: Solve for x
    x = 1,119,477,290,113.56/1,212,736
  6. Step 6: Final answer
    x = 923,100.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.