Home / 681,828.16-940,714.32-395,291.05

Finding the Fourth Proportional to 681,828.16, 940,714.32 and 395,291.05

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Solution

The fourth proportional to 681,828.16, 940,714.32 and 395,291.05 is: 545,380.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,828.16 : 940,714.32 = 395,291.05 : x
  2. Step 2: Convert to fraction form
    681,828.16/940,714.32 = 395,291.05/x
  3. Step 3: Cross multiply
    681,828.16x = 940,714.32 × 395,291.05
  4. Step 4: Simplify right side
    681,828.16x = 371,855,951,302.84
  5. Step 5: Solve for x
    x = 371,855,951,302.84/681,828.16
  6. Step 6: Final answer
    x = 545,380.75

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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.