Home / 819,986.02-1,131,093.54-638,410.34

Finding the Fourth Proportional to 819,986.02, 1,131,093.54 and 638,410.34

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Solution

The fourth proportional to 819,986.02, 1,131,093.54 and 638,410.34 is: 880,626.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,986.02 : 1,131,093.54 = 638,410.34 : x
  2. Step 2: Convert to fraction form
    819,986.02/1,131,093.54 = 638,410.34/x
  3. Step 3: Cross multiply
    819,986.02x = 1,131,093.54 × 638,410.34
  4. Step 4: Simplify right side
    819,986.02x = 722,101,814,270.94
  5. Step 5: Solve for x
    x = 722,101,814,270.94/819,986.02
  6. Step 6: Final answer
    x = 880,626.98

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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.