Home / 681,346.78-940,050.42-394,811.50

Finding the Fourth Proportional to 681,346.78, 940,050.42 and 394,811.50

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Solution

The fourth proportional to 681,346.78, 940,050.42 and 394,811.50 is: 544,719.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,346.78 : 940,050.42 = 394,811.50 : x
  2. Step 2: Convert to fraction form
    681,346.78/940,050.42 = 394,811.50/x
  3. Step 3: Cross multiply
    681,346.78x = 940,050.42 × 394,811.50
  4. Step 4: Simplify right side
    681,346.78x = 371,142,716,395.83
  5. Step 5: Solve for x
    x = 371,142,716,395.83/681,346.78
  6. Step 6: Final answer
    x = 544,719.26

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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.