Home / 1,011,891-1,394,785.56-685,099.80

Finding the Fourth Proportional to 1,011,891, 1,394,785.56 and 685,099.80

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Solution

The fourth proportional to 1,011,891, 1,394,785.56 and 685,099.80 is: 944,338.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,891 : 1,394,785.56 = 685,099.80 : x
  2. Step 2: Convert to fraction form
    1,011,891/1,394,785.56 = 685,099.80/x
  3. Step 3: Cross multiply
    1,011,891x = 1,394,785.56 × 685,099.80
  4. Step 4: Simplify right side
    1,011,891x = 955,567,308,198.89
  5. Step 5: Solve for x
    x = 955,567,308,198.89/1,011,891
  6. Step 6: Final answer
    x = 944,338.18

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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.