Home / 493,975.80-681,677.73-279,111.33

Finding the Fourth Proportional to 493,975.80, 681,677.73 and 279,111.33

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Solution

The fourth proportional to 493,975.80, 681,677.73 and 279,111.33 is: 385,168.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,975.80 : 681,677.73 = 279,111.33 : x
  2. Step 2: Convert to fraction form
    493,975.80/681,677.73 = 279,111.33/x
  3. Step 3: Cross multiply
    493,975.80x = 681,677.73 × 279,111.33
  4. Step 4: Simplify right side
    493,975.80x = 190,263,977,851.68
  5. Step 5: Solve for x
    x = 190,263,977,851.68/493,975.80
  6. Step 6: Final answer
    x = 385,168.62

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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.