Home / 681,403.41-940,336.73-395,089.58

Finding the Fourth Proportional to 681,403.41, 940,336.73 and 395,089.58

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Solution

The fourth proportional to 681,403.41, 940,336.73 and 395,089.58 is: 545,223.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,403.41 : 940,336.73 = 395,089.58 : x
  2. Step 2: Convert to fraction form
    681,403.41/940,336.73 = 395,089.58/x
  3. Step 3: Cross multiply
    681,403.41x = 940,336.73 × 395,089.58
  4. Step 4: Simplify right side
    681,403.41x = 371,517,237,037.14
  5. Step 5: Solve for x
    x = 371,517,237,037.14/681,403.41
  6. Step 6: Final answer
    x = 545,223.62

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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.