Home / 817,086.29-1,225,826.33-256,120.79

Finding the Fourth Proportional to 817,086.29, 1,225,826.33 and 256,120.79

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Solution

The fourth proportional to 817,086.29, 1,225,826.33 and 256,120.79 is: 384,242.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,086.29 : 1,225,826.33 = 256,120.79 : x
  2. Step 2: Convert to fraction form
    817,086.29/1,225,826.33 = 256,120.79/x
  3. Step 3: Cross multiply
    817,086.29x = 1,225,826.33 × 256,120.79
  4. Step 4: Simplify right side
    817,086.29x = 313,959,608,042.40
  5. Step 5: Solve for x
    x = 313,959,608,042.40/817,086.29
  6. Step 6: Final answer
    x = 384,242.90

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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.