Home / 286,906.12-396,013.80-191,412.56

Finding the Fourth Proportional to 286,906.12, 396,013.80 and 191,412.56

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Solution

The fourth proportional to 286,906.12, 396,013.80 and 191,412.56 is: 264,204.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,906.12 : 396,013.80 = 191,412.56 : x
  2. Step 2: Convert to fraction form
    286,906.12/396,013.80 = 191,412.56/x
  3. Step 3: Cross multiply
    286,906.12x = 396,013.80 × 191,412.56
  4. Step 4: Simplify right side
    286,906.12x = 75,802,015,253.33
  5. Step 5: Solve for x
    x = 75,802,015,253.33/286,906.12
  6. Step 6: Final answer
    x = 264,204.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.