Home / 3,561,119.20-4,913,697.43-1,991,279.36

Finding the Fourth Proportional to 3,561,119.20, 4,913,697.43 and 1,991,279.36

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Solution

The fourth proportional to 3,561,119.20, 4,913,697.43 and 1,991,279.36 is: 2,747,603.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561,119.20 : 4,913,697.43 = 1,991,279.36 : x
  2. Step 2: Convert to fraction form
    3,561,119.20/4,913,697.43 = 1,991,279.36/x
  3. Step 3: Cross multiply
    3,561,119.20x = 4,913,697.43 × 1,991,279.36
  4. Step 4: Simplify right side
    3,561,119.20x = 9,784,544,288,417.39
  5. Step 5: Solve for x
    x = 9,784,544,288,417.39/3,561,119.20
  6. Step 6: Final answer
    x = 2,747,603.70

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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.