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Finding the Fourth Proportional to 230,959.80, 346,439.70 and 197,134.20

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Solution

The fourth proportional to 230,959.80, 346,439.70 and 197,134.20 is: 295,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,959.80 : 346,439.70 = 197,134.20 : x
  2. Step 2: Convert to fraction form
    230,959.80/346,439.70 = 197,134.20/x
  3. Step 3: Cross multiply
    230,959.80x = 346,439.70 × 197,134.20
  4. Step 4: Simplify right side
    230,959.80x = 68,295,113,107.74
  5. Step 5: Solve for x
    x = 68,295,113,107.74/230,959.80
  6. Step 6: Final answer
    x = 295,701.30

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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.