Home / 1,317,624.86-1,976,416.50-419,053.61

Finding the Fourth Proportional to 1,317,624.86, 1,976,416.50 and 419,053.61

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Solution

The fourth proportional to 1,317,624.86, 1,976,416.50 and 419,053.61 is: 628,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,624.86 : 1,976,416.50 = 419,053.61 : x
  2. Step 2: Convert to fraction form
    1,317,624.86/1,976,416.50 = 419,053.61/x
  3. Step 3: Cross multiply
    1,317,624.86x = 1,976,416.50 × 419,053.61
  4. Step 4: Simplify right side
    1,317,624.86x = 828,224,469,188.57
  5. Step 5: Solve for x
    x = 828,224,469,188.57/1,317,624.86
  6. Step 6: Final answer
    x = 628,573.80

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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.