Home / 389,934.39-584,901.60-140,616.39

Finding the Fourth Proportional to 389,934.39, 584,901.60 and 140,616.39

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Solution

The fourth proportional to 389,934.39, 584,901.60 and 140,616.39 is: 210,924.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,934.39 : 584,901.60 = 140,616.39 : x
  2. Step 2: Convert to fraction form
    389,934.39/584,901.60 = 140,616.39/x
  3. Step 3: Cross multiply
    389,934.39x = 584,901.60 × 140,616.39
  4. Step 4: Simplify right side
    389,934.39x = 82,246,751,497.22
  5. Step 5: Solve for x
    x = 82,246,751,497.22/389,934.39
  6. Step 6: Final answer
    x = 210,924.59

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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.