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Finding the Fourth Proportional to 554,321.88, 764,964 and 299,673

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Solution

The fourth proportional to 554,321.88, 764,964 and 299,673 is: 413,548.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,321.88 : 764,964 = 299,673 : x
  2. Step 2: Convert to fraction form
    554,321.88/764,964 = 299,673/x
  3. Step 3: Cross multiply
    554,321.88x = 764,964 × 299,673
  4. Step 4: Simplify right side
    554,321.88x = 229,239,056,772
  5. Step 5: Solve for x
    x = 229,239,056,772/554,321.88
  6. Step 6: Final answer
    x = 413,548.63

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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.