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Finding the Fourth Proportional to 481,453.37, 721,658.75 and 313,094.53

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Solution

The fourth proportional to 481,453.37, 721,658.75 and 313,094.53 is: 469,302.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,453.37 : 721,658.75 = 313,094.53 : x
  2. Step 2: Convert to fraction form
    481,453.37/721,658.75 = 313,094.53/x
  3. Step 3: Cross multiply
    481,453.37x = 721,658.75 × 313,094.53
  4. Step 4: Simplify right side
    481,453.37x = 225,947,406,525.78
  5. Step 5: Solve for x
    x = 225,947,406,525.78/481,453.37
  6. Step 6: Final answer
    x = 469,302.78

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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.