Home / 919,570.95-1,379,554.95-279,924.69

Finding the Fourth Proportional to 919,570.95, 1,379,554.95 and 279,924.69

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Solution

The fourth proportional to 919,570.95, 1,379,554.95 and 279,924.69 is: 419,947.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,570.95 : 1,379,554.95 = 279,924.69 : x
  2. Step 2: Convert to fraction form
    919,570.95/1,379,554.95 = 279,924.69/x
  3. Step 3: Cross multiply
    919,570.95x = 1,379,554.95 × 279,924.69
  4. Step 4: Simplify right side
    919,570.95x = 386,171,491,716.72
  5. Step 5: Solve for x
    x = 386,171,491,716.72/919,570.95
  6. Step 6: Final answer
    x = 419,947.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.