Home / 1,113,212.70-1,668,780.24-439,299.60

Finding the Fourth Proportional to 1,113,212.70, 1,668,780.24 and 439,299.60

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Solution

The fourth proportional to 1,113,212.70, 1,668,780.24 and 439,299.60 is: 658,539.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,212.70 : 1,668,780.24 = 439,299.60 : x
  2. Step 2: Convert to fraction form
    1,113,212.70/1,668,780.24 = 439,299.60/x
  3. Step 3: Cross multiply
    1,113,212.70x = 1,668,780.24 × 439,299.60
  4. Step 4: Simplify right side
    1,113,212.70x = 733,094,491,919.90
  5. Step 5: Solve for x
    x = 733,094,491,919.90/1,113,212.70
  6. Step 6: Final answer
    x = 658,539.46

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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.