Home / 817,100.09-1,225,846.97-256,134.59

Finding the Fourth Proportional to 817,100.09, 1,225,846.97 and 256,134.59

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Solution

The fourth proportional to 817,100.09, 1,225,846.97 and 256,134.59 is: 384,263.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,100.09 : 1,225,846.97 = 256,134.59 : x
  2. Step 2: Convert to fraction form
    817,100.09/1,225,846.97 = 256,134.59/x
  3. Step 3: Cross multiply
    817,100.09x = 1,225,846.97 × 256,134.59
  4. Step 4: Simplify right side
    817,100.09x = 313,981,811,063.69
  5. Step 5: Solve for x
    x = 313,981,811,063.69/817,100.09
  6. Step 6: Final answer
    x = 384,263.59

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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.