Home / 985,386.23-1,359,736.79-571,858.70

Finding the Fourth Proportional to 985,386.23, 1,359,736.79 and 571,858.70

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Solution

The fourth proportional to 985,386.23, 1,359,736.79 and 571,858.70 is: 789,109.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,386.23 : 1,359,736.79 = 571,858.70 : x
  2. Step 2: Convert to fraction form
    985,386.23/1,359,736.79 = 571,858.70/x
  3. Step 3: Cross multiply
    985,386.23x = 1,359,736.79 × 571,858.70
  4. Step 4: Simplify right side
    985,386.23x = 777,577,303,413.60
  5. Step 5: Solve for x
    x = 777,577,303,413.60/985,386.23
  6. Step 6: Final answer
    x = 789,109.17

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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.