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Finding the Fourth Proportional to 412,200.60, 618,300.90 and 341,341.80

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Solution

The fourth proportional to 412,200.60, 618,300.90 and 341,341.80 is: 512,012.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,200.60 : 618,300.90 = 341,341.80 : x
  2. Step 2: Convert to fraction form
    412,200.60/618,300.90 = 341,341.80/x
  3. Step 3: Cross multiply
    412,200.60x = 618,300.90 × 341,341.80
  4. Step 4: Simplify right side
    412,200.60x = 211,051,942,147.62
  5. Step 5: Solve for x
    x = 211,051,942,147.62/412,200.60
  6. Step 6: Final answer
    x = 512,012.70

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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.