Home / 885,558.40-1,221,700.80-579,709.60

Finding the Fourth Proportional to 885,558.40, 1,221,700.80 and 579,709.60

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Solution

The fourth proportional to 885,558.40, 1,221,700.80 and 579,709.60 is: 799,757.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,558.40 : 1,221,700.80 = 579,709.60 : x
  2. Step 2: Convert to fraction form
    885,558.40/1,221,700.80 = 579,709.60/x
  3. Step 3: Cross multiply
    885,558.40x = 1,221,700.80 × 579,709.60
  4. Step 4: Simplify right side
    885,558.40x = 708,231,682,087.68
  5. Step 5: Solve for x
    x = 708,231,682,087.68/885,558.40
  6. Step 6: Final answer
    x = 799,757.17

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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.