Home / 541,771.18-811,909.44-408,505

Finding the Fourth Proportional to 541,771.18, 811,909.44 and 408,505

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Solution

The fourth proportional to 541,771.18, 811,909.44 and 408,505 is: 612,194.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,771.18 : 811,909.44 = 408,505 : x
  2. Step 2: Convert to fraction form
    541,771.18/811,909.44 = 408,505/x
  3. Step 3: Cross multiply
    541,771.18x = 811,909.44 × 408,505
  4. Step 4: Simplify right side
    541,771.18x = 331,669,065,787.20
  5. Step 5: Solve for x
    x = 331,669,065,787.20/541,771.18
  6. Step 6: Final answer
    x = 612,194.00

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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.