Home / 279,299.12-418,885.56-79,615.22

Finding the Fourth Proportional to 279,299.12, 418,885.56 and 79,615.22

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Solution

The fourth proportional to 279,299.12, 418,885.56 and 79,615.22 is: 119,404.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,299.12 : 418,885.56 = 79,615.22 : x
  2. Step 2: Convert to fraction form
    279,299.12/418,885.56 = 79,615.22/x
  3. Step 3: Cross multiply
    279,299.12x = 418,885.56 × 79,615.22
  4. Step 4: Simplify right side
    279,299.12x = 33,349,666,014.22
  5. Step 5: Solve for x
    x = 33,349,666,014.22/279,299.12
  6. Step 6: Final answer
    x = 119,404.84

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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.