Home / 823,911.24-1,236,043.32-255,279.75

Finding the Fourth Proportional to 823,911.24, 1,236,043.32 and 255,279.75

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Solution

The fourth proportional to 823,911.24, 1,236,043.32 and 255,279.75 is: 382,974.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,911.24 : 1,236,043.32 = 255,279.75 : x
  2. Step 2: Convert to fraction form
    823,911.24/1,236,043.32 = 255,279.75/x
  3. Step 3: Cross multiply
    823,911.24x = 1,236,043.32 × 255,279.75
  4. Step 4: Simplify right side
    823,911.24x = 315,536,829,718.77
  5. Step 5: Solve for x
    x = 315,536,829,718.77/823,911.24
  6. Step 6: Final answer
    x = 382,974.30

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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.