Home / 781,912.32-1,172,859.84-190,936.32

Finding the Fourth Proportional to 781,912.32, 1,172,859.84 and 190,936.32

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Solution

The fourth proportional to 781,912.32, 1,172,859.84 and 190,936.32 is: 286,402.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,912.32 : 1,172,859.84 = 190,936.32 : x
  2. Step 2: Convert to fraction form
    781,912.32/1,172,859.84 = 190,936.32/x
  3. Step 3: Cross multiply
    781,912.32x = 1,172,859.84 × 190,936.32
  4. Step 4: Simplify right side
    781,912.32x = 223,941,541,725.39
  5. Step 5: Solve for x
    x = 223,941,541,725.39/781,912.32
  6. Step 6: Final answer
    x = 286,402.37

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1.5x scale

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.