Home / 681,910.76-940,828.02-395,373.32

Finding the Fourth Proportional to 681,910.76, 940,828.02 and 395,373.32

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Solution

The fourth proportional to 681,910.76, 940,828.02 and 395,373.32 is: 545,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,910.76 : 940,828.02 = 395,373.32 : x
  2. Step 2: Convert to fraction form
    681,910.76/940,828.02 = 395,373.32/x
  3. Step 3: Cross multiply
    681,910.76x = 940,828.02 × 395,373.32
  4. Step 4: Simplify right side
    681,910.76x = 371,978,297,816.43
  5. Step 5: Solve for x
    x = 371,978,297,816.43/681,910.76
  6. Step 6: Final answer
    x = 545,494.10

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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.