Home / 817,091.91-1,225,834.79-256,126.41

Finding the Fourth Proportional to 817,091.91, 1,225,834.79 and 256,126.41

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Solution

The fourth proportional to 817,091.91, 1,225,834.79 and 256,126.41 is: 384,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,091.91 : 1,225,834.79 = 256,126.41 : x
  2. Step 2: Convert to fraction form
    817,091.91/1,225,834.79 = 256,126.41/x
  3. Step 3: Cross multiply
    817,091.91x = 1,225,834.79 × 256,126.41
  4. Step 4: Simplify right side
    817,091.91x = 313,968,664,015.80
  5. Step 5: Solve for x
    x = 313,968,664,015.80/817,091.91
  6. Step 6: Final answer
    x = 384,251.34

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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.