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Finding the Fourth Proportional to 629,627.60, 944,441.40 and 505,211.60

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Solution

The fourth proportional to 629,627.60, 944,441.40 and 505,211.60 is: 757,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,627.60 : 944,441.40 = 505,211.60 : x
  2. Step 2: Convert to fraction form
    629,627.60/944,441.40 = 505,211.60/x
  3. Step 3: Cross multiply
    629,627.60x = 944,441.40 × 505,211.60
  4. Step 4: Simplify right side
    629,627.60x = 477,142,750,800.24
  5. Step 5: Solve for x
    x = 477,142,750,800.24/629,627.60
  6. Step 6: Final answer
    x = 757,817.40

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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.