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Finding the Fourth Proportional to 280,205.88, 386,684.08 and 179,603.88

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Solution

The fourth proportional to 280,205.88, 386,684.08 and 179,603.88 is: 247,853.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,205.88 : 386,684.08 = 179,603.88 : x
  2. Step 2: Convert to fraction form
    280,205.88/386,684.08 = 179,603.88/x
  3. Step 3: Cross multiply
    280,205.88x = 386,684.08 × 179,603.88
  4. Step 4: Simplify right side
    280,205.88x = 69,449,961,102.23
  5. Step 5: Solve for x
    x = 69,449,961,102.23/280,205.88
  6. Step 6: Final answer
    x = 247,853.33

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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.