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Finding the Fourth Proportional to 303,470.10, 455,205.15 and 277,882.20

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Solution

The fourth proportional to 303,470.10, 455,205.15 and 277,882.20 is: 416,823.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,470.10 : 455,205.15 = 277,882.20 : x
  2. Step 2: Convert to fraction form
    303,470.10/455,205.15 = 277,882.20/x
  3. Step 3: Cross multiply
    303,470.10x = 455,205.15 × 277,882.20
  4. Step 4: Simplify right side
    303,470.10x = 126,493,408,533.33
  5. Step 5: Solve for x
    x = 126,493,408,533.33/303,470.10
  6. Step 6: Final answer
    x = 416,823.30

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1.5x scale

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.