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Finding the Fourth Proportional to 341,855.40, 513,244.80 and 199,846.20

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Solution

The fourth proportional to 341,855.40, 513,244.80 and 199,846.20 is: 300,039.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,855.40 : 513,244.80 = 199,846.20 : x
  2. Step 2: Convert to fraction form
    341,855.40/513,244.80 = 199,846.20/x
  3. Step 3: Cross multiply
    341,855.40x = 513,244.80 × 199,846.20
  4. Step 4: Simplify right side
    341,855.40x = 102,570,022,949.76
  5. Step 5: Solve for x
    x = 102,570,022,949.76/341,855.40
  6. Step 6: Final answer
    x = 300,039.21

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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.