Home / 819,082.35-1,130,413.61-611,991.39

Finding the Fourth Proportional to 819,082.35, 1,130,413.61 and 611,991.39

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Solution

The fourth proportional to 819,082.35, 1,130,413.61 and 611,991.39 is: 844,607.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,082.35 : 1,130,413.61 = 611,991.39 : x
  2. Step 2: Convert to fraction form
    819,082.35/1,130,413.61 = 611,991.39/x
  3. Step 3: Cross multiply
    819,082.35x = 1,130,413.61 × 611,991.39
  4. Step 4: Simplify right side
    819,082.35x = 691,803,387,746.79
  5. Step 5: Solve for x
    x = 691,803,387,746.79/819,082.35
  6. Step 6: Final answer
    x = 844,607.86

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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.