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Finding the Fourth Proportional to 206,596.20, 309,894.30 and 197,848.20

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Solution

The fourth proportional to 206,596.20, 309,894.30 and 197,848.20 is: 296,772.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,596.20 : 309,894.30 = 197,848.20 : x
  2. Step 2: Convert to fraction form
    206,596.20/309,894.30 = 197,848.20/x
  3. Step 3: Cross multiply
    206,596.20x = 309,894.30 × 197,848.20
  4. Step 4: Simplify right side
    206,596.20x = 61,312,029,445.26
  5. Step 5: Solve for x
    x = 61,312,029,445.26/206,596.20
  6. Step 6: Final answer
    x = 296,772.30

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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.