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Finding the Fourth Proportional to 448,913.08, 672,728.02 and 329,648.76

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Solution

The fourth proportional to 448,913.08, 672,728.02 and 329,648.76 is: 494,002.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,913.08 : 672,728.02 = 329,648.76 : x
  2. Step 2: Convert to fraction form
    448,913.08/672,728.02 = 329,648.76/x
  3. Step 3: Cross multiply
    448,913.08x = 672,728.02 × 329,648.76
  4. Step 4: Simplify right side
    448,913.08x = 221,763,957,610.26
  5. Step 5: Solve for x
    x = 221,763,957,610.26/448,913.08
  6. Step 6: Final answer
    x = 494,002.00

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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.