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Finding the Fourth Proportional to 449,080.80, 673,621.20 and 307,363.20

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Solution

The fourth proportional to 449,080.80, 673,621.20 and 307,363.20 is: 461,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,080.80 : 673,621.20 = 307,363.20 : x
  2. Step 2: Convert to fraction form
    449,080.80/673,621.20 = 307,363.20/x
  3. Step 3: Cross multiply
    449,080.80x = 673,621.20 × 307,363.20
  4. Step 4: Simplify right side
    449,080.80x = 207,046,367,619.84
  5. Step 5: Solve for x
    x = 207,046,367,619.84/449,080.80
  6. Step 6: Final answer
    x = 461,044.80

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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.