Home / 681,039.88-939,835.02-394,726.04

Finding the Fourth Proportional to 681,039.88, 939,835.02 and 394,726.04

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Solution

The fourth proportional to 681,039.88, 939,835.02 and 394,726.04 is: 544,721.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,039.88 : 939,835.02 = 394,726.04 : x
  2. Step 2: Convert to fraction form
    681,039.88/939,835.02 = 394,726.04/x
  3. Step 3: Cross multiply
    681,039.88x = 939,835.02 × 394,726.04
  4. Step 4: Simplify right side
    681,039.88x = 370,977,355,697.92
  5. Step 5: Solve for x
    x = 370,977,355,697.92/681,039.88
  6. Step 6: Final answer
    x = 544,721.93

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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.