Home / 991,915.62-1,366,413.94-719,182.14

Finding the Fourth Proportional to 991,915.62, 1,366,413.94 and 719,182.14

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Solution

The fourth proportional to 991,915.62, 1,366,413.94 and 719,182.14 is: 990,709.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,915.62 : 1,366,413.94 = 719,182.14 : x
  2. Step 2: Convert to fraction form
    991,915.62/1,366,413.94 = 719,182.14/x
  3. Step 3: Cross multiply
    991,915.62x = 1,366,413.94 × 719,182.14
  4. Step 4: Simplify right side
    991,915.62x = 982,700,492,865.01
  5. Step 5: Solve for x
    x = 982,700,492,865.01/991,915.62
  6. Step 6: Final answer
    x = 990,709.77

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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.