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Finding the Fourth Proportional to 307,450.80, 461,176.20 and 254,962.80

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Solution

The fourth proportional to 307,450.80, 461,176.20 and 254,962.80 is: 382,444.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,450.80 : 461,176.20 = 254,962.80 : x
  2. Step 2: Convert to fraction form
    307,450.80/461,176.20 = 254,962.80/x
  3. Step 3: Cross multiply
    307,450.80x = 461,176.20 × 254,962.80
  4. Step 4: Simplify right side
    307,450.80x = 117,582,775,245.36
  5. Step 5: Solve for x
    x = 117,582,775,245.36/307,450.80
  6. Step 6: Final answer
    x = 382,444.20

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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.