Home / 789,215.22-1,089,413.18-517,300.64

Finding the Fourth Proportional to 789,215.22, 1,089,413.18 and 517,300.64

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Solution

The fourth proportional to 789,215.22, 1,089,413.18 and 517,300.64 is: 714,069.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,215.22 : 1,089,413.18 = 517,300.64 : x
  2. Step 2: Convert to fraction form
    789,215.22/1,089,413.18 = 517,300.64/x
  3. Step 3: Cross multiply
    789,215.22x = 1,089,413.18 × 517,300.64
  4. Step 4: Simplify right side
    789,215.22x = 563,554,132,838.22
  5. Step 5: Solve for x
    x = 563,554,132,838.22/789,215.22
  6. Step 6: Final answer
    x = 714,069.01

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1.5x scale

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.