Home / 699,680.21-965,550.02-393,757.16

Finding the Fourth Proportional to 699,680.21, 965,550.02 and 393,757.16

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Solution

The fourth proportional to 699,680.21, 965,550.02 and 393,757.16 is: 543,380.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,680.21 : 965,550.02 = 393,757.16 : x
  2. Step 2: Convert to fraction form
    699,680.21/965,550.02 = 393,757.16/x
  3. Step 3: Cross multiply
    699,680.21x = 965,550.02 × 393,757.16
  4. Step 4: Simplify right side
    699,680.21x = 380,192,226,916.61
  5. Step 5: Solve for x
    x = 380,192,226,916.61/699,680.21
  6. Step 6: Final answer
    x = 543,380.00

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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.