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Finding the Fourth Proportional to 453,607.20, 680,410.80 and 263,872.80

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Solution

The fourth proportional to 453,607.20, 680,410.80 and 263,872.80 is: 395,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,607.20 : 680,410.80 = 263,872.80 : x
  2. Step 2: Convert to fraction form
    453,607.20/680,410.80 = 263,872.80/x
  3. Step 3: Cross multiply
    453,607.20x = 680,410.80 × 263,872.80
  4. Step 4: Simplify right side
    453,607.20x = 179,541,902,946.24
  5. Step 5: Solve for x
    x = 179,541,902,946.24/453,607.20
  6. Step 6: Final answer
    x = 395,809.20

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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.