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Finding the Fourth Proportional to 1,736,362.60, 2,603,766.30 and 789,245.80

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Solution

The fourth proportional to 1,736,362.60, 2,603,766.30 and 789,245.80 is: 1,183,515.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,736,362.60 : 2,603,766.30 = 789,245.80 : x
  2. Step 2: Convert to fraction form
    1,736,362.60/2,603,766.30 = 789,245.80/x
  3. Step 3: Cross multiply
    1,736,362.60x = 2,603,766.30 × 789,245.80
  4. Step 4: Simplify right side
    1,736,362.60x = 2,055,011,616,456.54
  5. Step 5: Solve for x
    x = 2,055,011,616,456.54/1,736,362.60
  6. Step 6: Final answer
    x = 1,183,515.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.