Home / 389,986.78-584,906.18-190,106.14

Finding the Fourth Proportional to 389,986.78, 584,906.18 and 190,106.14

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Solution

The fourth proportional to 389,986.78, 584,906.18 and 190,106.14 is: 285,123.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,986.78 : 584,906.18 = 190,106.14 : x
  2. Step 2: Convert to fraction form
    389,986.78/584,906.18 = 190,106.14/x
  3. Step 3: Cross multiply
    389,986.78x = 584,906.18 × 190,106.14
  4. Step 4: Simplify right side
    389,986.78x = 111,194,256,141.95
  5. Step 5: Solve for x
    x = 111,194,256,141.95/389,986.78
  6. Step 6: Final answer
    x = 285,123.14

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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.