Home / 200,584.04-276,716.90-128,950.76

Finding the Fourth Proportional to 200,584.04, 276,716.90 and 128,950.76

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Solution

The fourth proportional to 200,584.04, 276,716.90 and 128,950.76 is: 177,894.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,584.04 : 276,716.90 = 128,950.76 : x
  2. Step 2: Convert to fraction form
    200,584.04/276,716.90 = 128,950.76/x
  3. Step 3: Cross multiply
    200,584.04x = 276,716.90 × 128,950.76
  4. Step 4: Simplify right side
    200,584.04x = 35,682,854,559.84
  5. Step 5: Solve for x
    x = 35,682,854,559.84/200,584.04
  6. Step 6: Final answer
    x = 177,894.78

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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.