Home / 1,272,189.88-1,755,635.59-691,413.00

Finding the Fourth Proportional to 1,272,189.88, 1,755,635.59 and 691,413.00

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Solution

The fourth proportional to 1,272,189.88, 1,755,635.59 and 691,413.00 is: 954,157.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,189.88 : 1,755,635.59 = 691,413.00 : x
  2. Step 2: Convert to fraction form
    1,272,189.88/1,755,635.59 = 691,413.00/x
  3. Step 3: Cross multiply
    1,272,189.88x = 1,755,635.59 × 691,413.00
  4. Step 4: Simplify right side
    1,272,189.88x = 1,213,869,274,344.75
  5. Step 5: Solve for x
    x = 1,213,869,274,344.75/1,272,189.88
  6. Step 6: Final answer
    x = 954,157.31

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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.