Home / 809,983.11-1,117,765.33-442,455.88

Finding the Fourth Proportional to 809,983.11, 1,117,765.33 and 442,455.88

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Solution

The fourth proportional to 809,983.11, 1,117,765.33 and 442,455.88 is: 610,582.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,983.11 : 1,117,765.33 = 442,455.88 : x
  2. Step 2: Convert to fraction form
    809,983.11/1,117,765.33 = 442,455.88/x
  3. Step 3: Cross multiply
    809,983.11x = 1,117,765.33 × 442,455.88
  4. Step 4: Simplify right side
    809,983.11x = 494,561,845,596.75
  5. Step 5: Solve for x
    x = 494,561,845,596.75/809,983.11
  6. Step 6: Final answer
    x = 610,582.91

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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.