Home / 305,856.04-422,118.66-192,676.84

Finding the Fourth Proportional to 305,856.04, 422,118.66 and 192,676.84

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Solution

The fourth proportional to 305,856.04, 422,118.66 and 192,676.84 is: 265,917.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,856.04 : 422,118.66 = 192,676.84 : x
  2. Step 2: Convert to fraction form
    305,856.04/422,118.66 = 192,676.84/x
  3. Step 3: Cross multiply
    305,856.04x = 422,118.66 × 192,676.84
  4. Step 4: Simplify right side
    305,856.04x = 81,332,489,513.83
  5. Step 5: Solve for x
    x = 81,332,489,513.83/305,856.04
  6. Step 6: Final answer
    x = 265,917.55

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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.