Home / 784,732.82-1,082,899.41-445,193.78

Finding the Fourth Proportional to 784,732.82, 1,082,899.41 and 445,193.78

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Solution

The fourth proportional to 784,732.82, 1,082,899.41 and 445,193.78 is: 614,349.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,732.82 : 1,082,899.41 = 445,193.78 : x
  2. Step 2: Convert to fraction form
    784,732.82/1,082,899.41 = 445,193.78/x
  3. Step 3: Cross multiply
    784,732.82x = 1,082,899.41 × 445,193.78
  4. Step 4: Simplify right side
    784,732.82x = 482,100,081,697.67
  5. Step 5: Solve for x
    x = 482,100,081,697.67/784,732.82
  6. Step 6: Final answer
    x = 614,349.33

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1.5x scale

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.