Home / 634,440.78-951,910.25-279,205.61

Finding the Fourth Proportional to 634,440.78, 951,910.25 and 279,205.61

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Solution

The fourth proportional to 634,440.78, 951,910.25 and 279,205.61 is: 418,918.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,440.78 : 951,910.25 = 279,205.61 : x
  2. Step 2: Convert to fraction form
    634,440.78/951,910.25 = 279,205.61/x
  3. Step 3: Cross multiply
    634,440.78x = 951,910.25 × 279,205.61
  4. Step 4: Simplify right side
    634,440.78x = 265,778,682,016.50
  5. Step 5: Solve for x
    x = 265,778,682,016.50/634,440.78
  6. Step 6: Final answer
    x = 418,918.03

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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.