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Finding the Fourth Proportional to 446,738.80, 670,205.40 and 147,168.40

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Solution

The fourth proportional to 446,738.80, 670,205.40 and 147,168.40 is: 220,784.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,738.80 : 670,205.40 = 147,168.40 : x
  2. Step 2: Convert to fraction form
    446,738.80/670,205.40 = 147,168.40/x
  3. Step 3: Cross multiply
    446,738.80x = 670,205.40 × 147,168.40
  4. Step 4: Simplify right side
    446,738.80x = 98,633,056,389.36
  5. Step 5: Solve for x
    x = 98,633,056,389.36/446,738.80
  6. Step 6: Final answer
    x = 220,784.62

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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.