Home / 816,401.80-1,224,311.10-283,940.20

Finding the Fourth Proportional to 816,401.80, 1,224,311.10 and 283,940.20

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Solution

The fourth proportional to 816,401.80, 1,224,311.10 and 283,940.20 is: 425,808.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,401.80 : 1,224,311.10 = 283,940.20 : x
  2. Step 2: Convert to fraction form
    816,401.80/1,224,311.10 = 283,940.20/x
  3. Step 3: Cross multiply
    816,401.80x = 1,224,311.10 × 283,940.20
  4. Step 4: Simplify right side
    816,401.80x = 347,631,138,596.22
  5. Step 5: Solve for x
    x = 347,631,138,596.22/816,401.80
  6. Step 6: Final answer
    x = 425,808.88

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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.