Home / 818,804.23-1,129,917.66-456,218.77

Finding the Fourth Proportional to 818,804.23, 1,129,917.66 and 456,218.77

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Solution

The fourth proportional to 818,804.23, 1,129,917.66 and 456,218.77 is: 629,563.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,804.23 : 1,129,917.66 = 456,218.77 : x
  2. Step 2: Convert to fraction form
    818,804.23/1,129,917.66 = 456,218.77/x
  3. Step 3: Cross multiply
    818,804.23x = 1,129,917.66 × 456,218.77
  4. Step 4: Simplify right side
    818,804.23x = 515,489,645,046.48
  5. Step 5: Solve for x
    x = 515,489,645,046.48/818,804.23
  6. Step 6: Final answer
    x = 629,563.97

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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.