Home / 823,859.21-1,235,922.11-255,106.64

Finding the Fourth Proportional to 823,859.21, 1,235,922.11 and 255,106.64

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Solution

The fourth proportional to 823,859.21, 1,235,922.11 and 255,106.64 is: 382,701.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,859.21 : 1,235,922.11 = 255,106.64 : x
  2. Step 2: Convert to fraction form
    823,859.21/1,235,922.11 = 255,106.64/x
  3. Step 3: Cross multiply
    823,859.21x = 1,235,922.11 × 255,106.64
  4. Step 4: Simplify right side
    823,859.21x = 315,291,936,783.81
  5. Step 5: Solve for x
    x = 315,291,936,783.81/823,859.21
  6. Step 6: Final answer
    x = 382,701.23

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Double scale
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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.