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Finding the Fourth Proportional to 591,069.80, 886,604.70 and 236,138.60

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Solution

The fourth proportional to 591,069.80, 886,604.70 and 236,138.60 is: 354,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,069.80 : 886,604.70 = 236,138.60 : x
  2. Step 2: Convert to fraction form
    591,069.80/886,604.70 = 236,138.60/x
  3. Step 3: Cross multiply
    591,069.80x = 886,604.70 × 236,138.60
  4. Step 4: Simplify right side
    591,069.80x = 209,361,592,611.42
  5. Step 5: Solve for x
    x = 209,361,592,611.42/591,069.80
  6. Step 6: Final answer
    x = 354,207.90

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Half scale
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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.