Home / 819,542.22-1,226,995.09-434,413.54

Finding the Fourth Proportional to 819,542.22, 1,226,995.09 and 434,413.54

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Solution

The fourth proportional to 819,542.22, 1,226,995.09 and 434,413.54 is: 650,391.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,542.22 : 1,226,995.09 = 434,413.54 : x
  2. Step 2: Convert to fraction form
    819,542.22/1,226,995.09 = 434,413.54/x
  3. Step 3: Cross multiply
    819,542.22x = 1,226,995.09 × 434,413.54
  4. Step 4: Simplify right side
    819,542.22x = 533,023,280,609.52
  5. Step 5: Solve for x
    x = 533,023,280,609.52/819,542.22
  6. Step 6: Final answer
    x = 650,391.48

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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.