Home / 892,309.85-1,338,464.74-261,223.66

Finding the Fourth Proportional to 892,309.85, 1,338,464.74 and 261,223.66

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Solution

The fourth proportional to 892,309.85, 1,338,464.74 and 261,223.66 is: 391,835.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,309.85 : 1,338,464.74 = 261,223.66 : x
  2. Step 2: Convert to fraction form
    892,309.85/1,338,464.74 = 261,223.66/x
  3. Step 3: Cross multiply
    892,309.85x = 1,338,464.74 × 261,223.66
  4. Step 4: Simplify right side
    892,309.85x = 349,638,658,163.75
  5. Step 5: Solve for x
    x = 349,638,658,163.75/892,309.85
  6. Step 6: Final answer
    x = 391,835.48

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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.