Home / 389,985.03-584,903.57-190,104.39

Finding the Fourth Proportional to 389,985.03, 584,903.57 and 190,104.39

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Solution

The fourth proportional to 389,985.03, 584,903.57 and 190,104.39 is: 285,120.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,985.03 : 584,903.57 = 190,104.39 : x
  2. Step 2: Convert to fraction form
    389,985.03/584,903.57 = 190,104.39/x
  3. Step 3: Cross multiply
    389,985.03x = 584,903.57 × 190,104.39
  4. Step 4: Simplify right side
    389,985.03x = 111,192,735,433.15
  5. Step 5: Solve for x
    x = 111,192,735,433.15/389,985.03
  6. Step 6: Final answer
    x = 285,120.52

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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.