Home / 998,858.21-1,378,799.17-654,716.31

Finding the Fourth Proportional to 998,858.21, 1,378,799.17 and 654,716.31

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Solution

The fourth proportional to 998,858.21, 1,378,799.17 and 654,716.31 is: 903,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,858.21 : 1,378,799.17 = 654,716.31 : x
  2. Step 2: Convert to fraction form
    998,858.21/1,378,799.17 = 654,716.31/x
  3. Step 3: Cross multiply
    998,858.21x = 1,378,799.17 × 654,716.31
  4. Step 4: Simplify right side
    998,858.21x = 902,722,294,645.89
  5. Step 5: Solve for x
    x = 902,722,294,645.89/998,858.21
  6. Step 6: Final answer
    x = 903,754.20

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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.