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Finding the Fourth Proportional to 432,852.60, 649,278.90 and 327,876.60

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Solution

The fourth proportional to 432,852.60, 649,278.90 and 327,876.60 is: 491,814.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,852.60 : 649,278.90 = 327,876.60 : x
  2. Step 2: Convert to fraction form
    432,852.60/649,278.90 = 327,876.60/x
  3. Step 3: Cross multiply
    432,852.60x = 649,278.90 × 327,876.60
  4. Step 4: Simplify right side
    432,852.60x = 212,883,358,183.74
  5. Step 5: Solve for x
    x = 212,883,358,183.74/432,852.60
  6. Step 6: Final answer
    x = 491,814.90

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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.