Home / 1,131,321.36-1,561,209.48-622,019.28

Finding the Fourth Proportional to 1,131,321.36, 1,561,209.48 and 622,019.28

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Solution

The fourth proportional to 1,131,321.36, 1,561,209.48 and 622,019.28 is: 858,378.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,321.36 : 1,561,209.48 = 622,019.28 : x
  2. Step 2: Convert to fraction form
    1,131,321.36/1,561,209.48 = 622,019.28/x
  3. Step 3: Cross multiply
    1,131,321.36x = 1,561,209.48 × 622,019.28
  4. Step 4: Simplify right side
    1,131,321.36x = 971,102,396,678.77
  5. Step 5: Solve for x
    x = 971,102,396,678.77/1,131,321.36
  6. Step 6: Final answer
    x = 858,378.91

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1.5x scale

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.