Home / 819,977.67-1,230,321.75-440,455.62

Finding the Fourth Proportional to 819,977.67, 1,230,321.75 and 440,455.62

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Solution

The fourth proportional to 819,977.67, 1,230,321.75 and 440,455.62 is: 660,874.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,977.67 : 1,230,321.75 = 440,455.62 : x
  2. Step 2: Convert to fraction form
    819,977.67/1,230,321.75 = 440,455.62/x
  3. Step 3: Cross multiply
    819,977.67x = 1,230,321.75 × 440,455.62
  4. Step 4: Simplify right side
    819,977.67x = 541,902,129,195.74
  5. Step 5: Solve for x
    x = 541,902,129,195.74/819,977.67
  6. Step 6: Final answer
    x = 660,874.25

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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.