Home / 643,194.33-964,930.80-193,877.61

Finding the Fourth Proportional to 643,194.33, 964,930.80 and 193,877.61

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Solution

The fourth proportional to 643,194.33, 964,930.80 and 193,877.61 is: 290,858.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,194.33 : 964,930.80 = 193,877.61 : x
  2. Step 2: Convert to fraction form
    643,194.33/964,930.80 = 193,877.61/x
  3. Step 3: Cross multiply
    643,194.33x = 964,930.80 × 193,877.61
  4. Step 4: Simplify right side
    643,194.33x = 187,078,477,319.39
  5. Step 5: Solve for x
    x = 187,078,477,319.39/643,194.33
  6. Step 6: Final answer
    x = 290,858.41

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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.