Home / 641,382.67-961,920.85-191,982.93

Finding the Fourth Proportional to 641,382.67, 961,920.85 and 191,982.93

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Solution

The fourth proportional to 641,382.67, 961,920.85 and 191,982.93 is: 287,928.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,382.67 : 961,920.85 = 191,982.93 : x
  2. Step 2: Convert to fraction form
    641,382.67/961,920.85 = 191,982.93/x
  3. Step 3: Cross multiply
    641,382.67x = 961,920.85 × 191,982.93
  4. Step 4: Simplify right side
    641,382.67x = 184,672,383,211.09
  5. Step 5: Solve for x
    x = 184,672,383,211.09/641,382.67
  6. Step 6: Final answer
    x = 287,928.55

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1.5x scale

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.