Home / 1,329,161.40-1,993,742.10-619,261.20

Finding the Fourth Proportional to 1,329,161.40, 1,993,742.10 and 619,261.20

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Solution

The fourth proportional to 1,329,161.40, 1,993,742.10 and 619,261.20 is: 928,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,161.40 : 1,993,742.10 = 619,261.20 : x
  2. Step 2: Convert to fraction form
    1,329,161.40/1,993,742.10 = 619,261.20/x
  3. Step 3: Cross multiply
    1,329,161.40x = 1,993,742.10 × 619,261.20
  4. Step 4: Simplify right side
    1,329,161.40x = 1,234,647,125,336.52
  5. Step 5: Solve for x
    x = 1,234,647,125,336.52/1,329,161.40
  6. Step 6: Final answer
    x = 928,891.80

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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.