Home / 818,534.39-1,227,790.64-211,324.77

Finding the Fourth Proportional to 818,534.39, 1,227,790.64 and 211,324.77

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Solution

The fourth proportional to 818,534.39, 1,227,790.64 and 211,324.77 is: 316,984.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,534.39 : 1,227,790.64 = 211,324.77 : x
  2. Step 2: Convert to fraction form
    818,534.39/1,227,790.64 = 211,324.77/x
  3. Step 3: Cross multiply
    818,534.39x = 1,227,790.64 × 211,324.77
  4. Step 4: Simplify right side
    818,534.39x = 259,462,575,134.47
  5. Step 5: Solve for x
    x = 259,462,575,134.47/818,534.39
  6. Step 6: Final answer
    x = 316,984.33

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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.