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Finding the Fourth Proportional to 448,912.08, 672,726.52 and 329,647.76

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Solution

The fourth proportional to 448,912.08, 672,726.52 and 329,647.76 is: 494,000.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,912.08 : 672,726.52 = 329,647.76 : x
  2. Step 2: Convert to fraction form
    448,912.08/672,726.52 = 329,647.76/x
  3. Step 3: Cross multiply
    448,912.08x = 672,726.52 × 329,647.76
  4. Step 4: Simplify right side
    448,912.08x = 221,762,790,410.60
  5. Step 5: Solve for x
    x = 221,762,790,410.60/448,912.08
  6. Step 6: Final answer
    x = 494,000.50

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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.