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Finding the Fourth Proportional to 547,596.46, 821,394.23 and 206,103.70

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Solution

The fourth proportional to 547,596.46, 821,394.23 and 206,103.70 is: 309,155.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,596.46 : 821,394.23 = 206,103.70 : x
  2. Step 2: Convert to fraction form
    547,596.46/821,394.23 = 206,103.70/x
  3. Step 3: Cross multiply
    547,596.46x = 821,394.23 × 206,103.70
  4. Step 4: Simplify right side
    547,596.46x = 169,292,389,961.65
  5. Step 5: Solve for x
    x = 169,292,389,961.65/547,596.46
  6. Step 6: Final answer
    x = 309,155.38

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Double scale
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Similar ratio
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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.