Home / 338,186.80-465,635.56-287,093.64

Finding the Fourth Proportional to 338,186.80, 465,635.56 and 287,093.64

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Solution

The fourth proportional to 338,186.80, 465,635.56 and 287,093.64 is: 395,287.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,186.80 : 465,635.56 = 287,093.64 : x
  2. Step 2: Convert to fraction form
    338,186.80/465,635.56 = 287,093.64/x
  3. Step 3: Cross multiply
    338,186.80x = 465,635.56 × 287,093.64
  4. Step 4: Simplify right side
    338,186.80x = 133,681,007,833.84
  5. Step 5: Solve for x
    x = 133,681,007,833.84/338,186.80
  6. Step 6: Final answer
    x = 395,287.48

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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.