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Finding the Fourth Proportional to 800,336.48, 1,103,940.40 and 477,794.40

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Solution

The fourth proportional to 800,336.48, 1,103,940.40 and 477,794.40 is: 659,043.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,336.48 : 1,103,940.40 = 477,794.40 : x
  2. Step 2: Convert to fraction form
    800,336.48/1,103,940.40 = 477,794.40/x
  3. Step 3: Cross multiply
    800,336.48x = 1,103,940.40 × 477,794.40
  4. Step 4: Simplify right side
    800,336.48x = 527,456,541,053.76
  5. Step 5: Solve for x
    x = 527,456,541,053.76/800,336.48
  6. Step 6: Final answer
    x = 659,043.48

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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.