Home / 1,638,997.48-2,256,669.64-1,393,499.44

Finding the Fourth Proportional to 1,638,997.48, 2,256,669.64 and 1,393,499.44

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Solution

The fourth proportional to 1,638,997.48, 2,256,669.64 and 1,393,499.44 is: 1,918,653.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,997.48 : 2,256,669.64 = 1,393,499.44 : x
  2. Step 2: Convert to fraction form
    1,638,997.48/2,256,669.64 = 1,393,499.44/x
  3. Step 3: Cross multiply
    1,638,997.48x = 2,256,669.64 × 1,393,499.44
  4. Step 4: Simplify right side
    1,638,997.48x = 3,144,667,879,605.00
  5. Step 5: Solve for x
    x = 3,144,667,879,605.00/1,638,997.48
  6. Step 6: Final answer
    x = 1,918,653.27

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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.