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Finding the Fourth Proportional to 481,300.87, 664,203.03 and 263,505.88

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Solution

The fourth proportional to 481,300.87, 664,203.03 and 263,505.88 is: 363,642.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,300.87 : 664,203.03 = 263,505.88 : x
  2. Step 2: Convert to fraction form
    481,300.87/664,203.03 = 263,505.88/x
  3. Step 3: Cross multiply
    481,300.87x = 664,203.03 × 263,505.88
  4. Step 4: Simplify right side
    481,300.87x = 175,021,403,918.82
  5. Step 5: Solve for x
    x = 175,021,403,918.82/481,300.87
  6. Step 6: Final answer
    x = 363,642.40

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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.