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Finding the Fourth Proportional to 443,017.92, 664,682.40 and 276,611.52

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Solution

The fourth proportional to 443,017.92, 664,682.40 and 276,611.52 is: 415,014.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,017.92 : 664,682.40 = 276,611.52 : x
  2. Step 2: Convert to fraction form
    443,017.92/664,682.40 = 276,611.52/x
  3. Step 3: Cross multiply
    443,017.92x = 664,682.40 × 276,611.52
  4. Step 4: Simplify right side
    443,017.92x = 183,858,808,981.25
  5. Step 5: Solve for x
    x = 183,858,808,981.25/443,017.92
  6. Step 6: Final answer
    x = 415,014.38

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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.