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Finding the Fourth Proportional to 2,652,163.79, 3,978,216.51 and 1,587,503.03

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Solution

The fourth proportional to 2,652,163.79, 3,978,216.51 and 1,587,503.03 is: 2,381,237.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652,163.79 : 3,978,216.51 = 1,587,503.03 : x
  2. Step 2: Convert to fraction form
    2,652,163.79/3,978,216.51 = 1,587,503.03/x
  3. Step 3: Cross multiply
    2,652,163.79x = 3,978,216.51 × 1,587,503.03
  4. Step 4: Simplify right side
    2,652,163.79x = 6,315,430,743,729.94
  5. Step 5: Solve for x
    x = 6,315,430,743,729.94/2,652,163.79
  6. Step 6: Final answer
    x = 2,381,237.08

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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.