Home / 838,673.75-1,157,418.36-631,571.39

Finding the Fourth Proportional to 838,673.75, 1,157,418.36 and 631,571.39

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Solution

The fourth proportional to 838,673.75, 1,157,418.36 and 631,571.39 is: 871,605.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,673.75 : 1,157,418.36 = 631,571.39 : x
  2. Step 2: Convert to fraction form
    838,673.75/1,157,418.36 = 631,571.39/x
  3. Step 3: Cross multiply
    838,673.75x = 1,157,418.36 × 631,571.39
  4. Step 4: Simplify right side
    838,673.75x = 730,992,322,436.72
  5. Step 5: Solve for x
    x = 730,992,322,436.72/838,673.75
  6. Step 6: Final answer
    x = 871,605.11

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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.