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Finding the Fourth Proportional to 556,072.20, 834,143.58 and 196,198.20

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Solution

The fourth proportional to 556,072.20, 834,143.58 and 196,198.20 is: 294,309.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,072.20 : 834,143.58 = 196,198.20 : x
  2. Step 2: Convert to fraction form
    556,072.20/834,143.58 = 196,198.20/x
  3. Step 3: Cross multiply
    556,072.20x = 834,143.58 × 196,198.20
  4. Step 4: Simplify right side
    556,072.20x = 163,657,468,937.56
  5. Step 5: Solve for x
    x = 163,657,468,937.56/556,072.20
  6. Step 6: Final answer
    x = 294,309.75

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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.