Home / 414,945.40-622,272.30-190,413.40

Finding the Fourth Proportional to 414,945.40, 622,272.30 and 190,413.40

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Solution

The fourth proportional to 414,945.40, 622,272.30 and 190,413.40 is: 285,553.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,945.40 : 622,272.30 = 190,413.40 : x
  2. Step 2: Convert to fraction form
    414,945.40/622,272.30 = 190,413.40/x
  3. Step 3: Cross multiply
    414,945.40x = 622,272.30 × 190,413.40
  4. Step 4: Simplify right side
    414,945.40x = 118,488,984,368.82
  5. Step 5: Solve for x
    x = 118,488,984,368.82/414,945.40
  6. Step 6: Final answer
    x = 285,553.19

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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.