Home / 1,131,273.74-1,561,157.76-621,976.11

Finding the Fourth Proportional to 1,131,273.74, 1,561,157.76 and 621,976.11

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Solution

The fourth proportional to 1,131,273.74, 1,561,157.76 and 621,976.11 is: 858,327.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,273.74 : 1,561,157.76 = 621,976.11 : x
  2. Step 2: Convert to fraction form
    1,131,273.74/1,561,157.76 = 621,976.11/x
  3. Step 3: Cross multiply
    1,131,273.74x = 1,561,157.76 × 621,976.11
  4. Step 4: Simplify right side
    1,131,273.74x = 971,002,830,661.11
  5. Step 5: Solve for x
    x = 971,002,830,661.11/1,131,273.74
  6. Step 6: Final answer
    x = 858,327.03

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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.