Home / 823,061.26-1,135,778.16-455,518.36

Finding the Fourth Proportional to 823,061.26, 1,135,778.16 and 455,518.36

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Solution

The fourth proportional to 823,061.26, 1,135,778.16 and 455,518.36 is: 628,589.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,061.26 : 1,135,778.16 = 455,518.36 : x
  2. Step 2: Convert to fraction form
    823,061.26/1,135,778.16 = 455,518.36/x
  3. Step 3: Cross multiply
    823,061.26x = 1,135,778.16 × 455,518.36
  4. Step 4: Simplify right side
    823,061.26x = 517,367,804,767.02
  5. Step 5: Solve for x
    x = 517,367,804,767.02/823,061.26
  6. Step 6: Final answer
    x = 628,589.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.