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Finding the Fourth Proportional to 446,440.80, 669,661.20 and 313,471.20

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Solution

The fourth proportional to 446,440.80, 669,661.20 and 313,471.20 is: 470,206.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,440.80 : 669,661.20 = 313,471.20 : x
  2. Step 2: Convert to fraction form
    446,440.80/669,661.20 = 313,471.20/x
  3. Step 3: Cross multiply
    446,440.80x = 669,661.20 × 313,471.20
  4. Step 4: Simplify right side
    446,440.80x = 209,919,499,957.44
  5. Step 5: Solve for x
    x = 209,919,499,957.44/446,440.80
  6. Step 6: Final answer
    x = 470,206.80

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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.