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Finding the Fourth Proportional to 447,797.92, 616,910.02 and 311,597.64

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Solution

The fourth proportional to 447,797.92, 616,910.02 and 311,597.64 is: 429,273.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,797.92 : 616,910.02 = 311,597.64 : x
  2. Step 2: Convert to fraction form
    447,797.92/616,910.02 = 311,597.64/x
  3. Step 3: Cross multiply
    447,797.92x = 616,910.02 × 311,597.64
  4. Step 4: Simplify right side
    447,797.92x = 192,227,706,324.35
  5. Step 5: Solve for x
    x = 192,227,706,324.35/447,797.92
  6. Step 6: Final answer
    x = 429,273.33

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1.5x scale

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.