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Finding the Fourth Proportional to 3,837,559.67, 5,756,259.71 and 1,278,960.02

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Solution

The fourth proportional to 3,837,559.67, 5,756,259.71 and 1,278,960.02 is: 1,918,413.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,837,559.67 : 5,756,259.71 = 1,278,960.02 : x
  2. Step 2: Convert to fraction form
    3,837,559.67/5,756,259.71 = 1,278,960.02/x
  3. Step 3: Cross multiply
    3,837,559.67x = 5,756,259.71 × 1,278,960.02
  4. Step 4: Simplify right side
    3,837,559.67x = 7,362,026,008,242.90
  5. Step 5: Solve for x
    x = 7,362,026,008,242.90/3,837,559.67
  6. Step 6: Final answer
    x = 1,918,413.43

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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.