Home / 826,413.56-1,240,284.54-427,171.28

Finding the Fourth Proportional to 826,413.56, 1,240,284.54 and 427,171.28

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Solution

The fourth proportional to 826,413.56, 1,240,284.54 and 427,171.28 is: 641,100.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,413.56 : 1,240,284.54 = 427,171.28 : x
  2. Step 2: Convert to fraction form
    826,413.56/1,240,284.54 = 427,171.28/x
  3. Step 3: Cross multiply
    826,413.56x = 1,240,284.54 × 427,171.28
  4. Step 4: Simplify right side
    826,413.56x = 529,813,934,516.01
  5. Step 5: Solve for x
    x = 529,813,934,516.01/826,413.56
  6. Step 6: Final answer
    x = 641,100.24

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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.