Home / 1,930,765.50-2,664,583.70-1,115,003.43

Finding the Fourth Proportional to 1,930,765.50, 2,664,583.70 and 1,115,003.43

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Solution

The fourth proportional to 1,930,765.50, 2,664,583.70 and 1,115,003.43 is: 1,538,778.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930,765.50 : 2,664,583.70 = 1,115,003.43 : x
  2. Step 2: Convert to fraction form
    1,930,765.50/2,664,583.70 = 1,115,003.43/x
  3. Step 3: Cross multiply
    1,930,765.50x = 2,664,583.70 × 1,115,003.43
  4. Step 4: Simplify right side
    1,930,765.50x = 2,971,019,959,447.07
  5. Step 5: Solve for x
    x = 2,971,019,959,447.07/1,930,765.50
  6. Step 6: Final answer
    x = 1,538,778.25

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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.