Home / 778,110.36-1,073,800.44-438,578.60

Finding the Fourth Proportional to 778,110.36, 1,073,800.44 and 438,578.60

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Solution

The fourth proportional to 778,110.36, 1,073,800.44 and 438,578.60 is: 605,243.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,110.36 : 1,073,800.44 = 438,578.60 : x
  2. Step 2: Convert to fraction form
    778,110.36/1,073,800.44 = 438,578.60/x
  3. Step 3: Cross multiply
    778,110.36x = 1,073,800.44 × 438,578.60
  4. Step 4: Simplify right side
    778,110.36x = 470,945,893,654.58
  5. Step 5: Solve for x
    x = 470,945,893,654.58/778,110.36
  6. Step 6: Final answer
    x = 605,243.06

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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.