Home / 651,198.78-899,093.18-406,556.40

Finding the Fourth Proportional to 651,198.78, 899,093.18 and 406,556.40

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Solution

The fourth proportional to 651,198.78, 899,093.18 and 406,556.40 is: 561,321.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,198.78 : 899,093.18 = 406,556.40 : x
  2. Step 2: Convert to fraction form
    651,198.78/899,093.18 = 406,556.40/x
  3. Step 3: Cross multiply
    651,198.78x = 899,093.18 × 406,556.40
  4. Step 4: Simplify right side
    651,198.78x = 365,532,086,525.35
  5. Step 5: Solve for x
    x = 365,532,086,525.35/651,198.78
  6. Step 6: Final answer
    x = 561,321.82

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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.