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Finding the Fourth Proportional to 432,823.60, 649,235.40 and 327,847.60

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Solution

The fourth proportional to 432,823.60, 649,235.40 and 327,847.60 is: 491,771.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,823.60 : 649,235.40 = 327,847.60 : x
  2. Step 2: Convert to fraction form
    432,823.60/649,235.40 = 327,847.60/x
  3. Step 3: Cross multiply
    432,823.60x = 649,235.40 × 327,847.60
  4. Step 4: Simplify right side
    432,823.60x = 212,850,267,725.04
  5. Step 5: Solve for x
    x = 212,850,267,725.04/432,823.60
  6. Step 6: Final answer
    x = 491,771.40

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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.