Home / 808,620.60-1,212,347.70-528,295.80

Finding the Fourth Proportional to 808,620.60, 1,212,347.70 and 528,295.80

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Solution

The fourth proportional to 808,620.60, 1,212,347.70 and 528,295.80 is: 792,062.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,620.60 : 1,212,347.70 = 528,295.80 : x
  2. Step 2: Convert to fraction form
    808,620.60/1,212,347.70 = 528,295.80/x
  3. Step 3: Cross multiply
    808,620.60x = 1,212,347.70 × 528,295.80
  4. Step 4: Simplify right side
    808,620.60x = 640,478,198,049.66
  5. Step 5: Solve for x
    x = 640,478,198,049.66/808,620.60
  6. Step 6: Final answer
    x = 792,062.68

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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.