Home / 940,017,867.43-1,297,198,858.55-522,319,413.19

Finding the Fourth Proportional to 940,017,867.43, 1,297,198,858.55 and 522,319,413.19

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Solution

The fourth proportional to 940,017,867.43, 1,297,198,858.55 and 522,319,413.19 is: 720,786,455.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,017,867.43 : 1,297,198,858.55 = 522,319,413.19 : x
  2. Step 2: Convert to fraction form
    940,017,867.43/1,297,198,858.55 = 522,319,413.19/x
  3. Step 3: Cross multiply
    940,017,867.43x = 1,297,198,858.55 × 522,319,413.19
  4. Step 4: Simplify right side
    940,017,867.43x = 677,552,146,588,573,824
  5. Step 5: Solve for x
    x = 677,552,146,588,573,824/940,017,867.43
  6. Step 6: Final answer
    x = 720,786,455.31

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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.