Home / 519,811.08-779,716.09-195,659.71

Finding the Fourth Proportional to 519,811.08, 779,716.09 and 195,659.71

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Solution

The fourth proportional to 519,811.08, 779,716.09 and 195,659.71 is: 293,489.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,811.08 : 779,716.09 = 195,659.71 : x
  2. Step 2: Convert to fraction form
    519,811.08/779,716.09 = 195,659.71/x
  3. Step 3: Cross multiply
    519,811.08x = 779,716.09 × 195,659.71
  4. Step 4: Simplify right side
    519,811.08x = 152,559,024,051.73
  5. Step 5: Solve for x
    x = 152,559,024,051.73/519,811.08
  6. Step 6: Final answer
    x = 293,489.37

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Similar ratio
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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.