Home / 1,289,018.21-1,778,784.77-716,093.33

Finding the Fourth Proportional to 1,289,018.21, 1,778,784.77 and 716,093.33

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Solution

The fourth proportional to 1,289,018.21, 1,778,784.77 and 716,093.33 is: 988,175.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,018.21 : 1,778,784.77 = 716,093.33 : x
  2. Step 2: Convert to fraction form
    1,289,018.21/1,778,784.77 = 716,093.33/x
  3. Step 3: Cross multiply
    1,289,018.21x = 1,778,784.77 × 716,093.33
  4. Step 4: Simplify right side
    1,289,018.21x = 1,273,775,902,198.89
  5. Step 5: Solve for x
    x = 1,273,775,902,198.89/1,289,018.21
  6. Step 6: Final answer
    x = 988,175.26

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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.