Home / 389,979.75-584,895.65-190,099.11

Finding the Fourth Proportional to 389,979.75, 584,895.65 and 190,099.11

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Solution

The fourth proportional to 389,979.75, 584,895.65 and 190,099.11 is: 285,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,979.75 : 584,895.65 = 190,099.11 : x
  2. Step 2: Convert to fraction form
    389,979.75/584,895.65 = 190,099.11/x
  3. Step 3: Cross multiply
    389,979.75x = 584,895.65 × 190,099.11
  4. Step 4: Simplify right side
    389,979.75x = 111,188,141,557.38
  5. Step 5: Solve for x
    x = 111,188,141,557.38/389,979.75
  6. Step 6: Final answer
    x = 285,112.60

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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.