Home / 693,413.20-1,040,119.80-607,704.40

Finding the Fourth Proportional to 693,413.20, 1,040,119.80 and 607,704.40

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Solution

The fourth proportional to 693,413.20, 1,040,119.80 and 607,704.40 is: 911,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,413.20 : 1,040,119.80 = 607,704.40 : x
  2. Step 2: Convert to fraction form
    693,413.20/1,040,119.80 = 607,704.40/x
  3. Step 3: Cross multiply
    693,413.20x = 1,040,119.80 × 607,704.40
  4. Step 4: Simplify right side
    693,413.20x = 632,085,378,987.12
  5. Step 5: Solve for x
    x = 632,085,378,987.12/693,413.20
  6. Step 6: Final answer
    x = 911,556.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.