Home / 200,414.52-276,438.96-128,885.04

Finding the Fourth Proportional to 200,414.52, 276,438.96 and 128,885.04

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Solution

The fourth proportional to 200,414.52, 276,438.96 and 128,885.04 is: 177,775.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,414.52 : 276,438.96 = 128,885.04 : x
  2. Step 2: Convert to fraction form
    200,414.52/276,438.96 = 128,885.04/x
  3. Step 3: Cross multiply
    200,414.52x = 276,438.96 × 128,885.04
  4. Step 4: Simplify right side
    200,414.52x = 35,628,846,417.16
  5. Step 5: Solve for x
    x = 35,628,846,417.16/200,414.52
  6. Step 6: Final answer
    x = 177,775.77

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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.