Home / 494,015.68-681,732.69-279,151.15

Finding the Fourth Proportional to 494,015.68, 681,732.69 and 279,151.15

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Solution

The fourth proportional to 494,015.68, 681,732.69 and 279,151.15 is: 385,223.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,015.68 : 681,732.69 = 279,151.15 : x
  2. Step 2: Convert to fraction form
    494,015.68/681,732.69 = 279,151.15/x
  3. Step 3: Cross multiply
    494,015.68x = 681,732.69 × 279,151.15
  4. Step 4: Simplify right side
    494,015.68x = 190,306,464,406.09
  5. Step 5: Solve for x
    x = 190,306,464,406.09/494,015.68
  6. Step 6: Final answer
    x = 385,223.53

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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.