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Finding the Fourth Proportional to 461,157.60, 691,736.40 and 283,087.20

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Solution

The fourth proportional to 461,157.60, 691,736.40 and 283,087.20 is: 424,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,157.60 : 691,736.40 = 283,087.20 : x
  2. Step 2: Convert to fraction form
    461,157.60/691,736.40 = 283,087.20/x
  3. Step 3: Cross multiply
    461,157.60x = 691,736.40 × 283,087.20
  4. Step 4: Simplify right side
    461,157.60x = 195,821,720,614.08
  5. Step 5: Solve for x
    x = 195,821,720,614.08/461,157.60
  6. Step 6: Final answer
    x = 424,630.80

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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.