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Finding the Fourth Proportional to 568,066.80, 852,100.20 and 318,716.40

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Solution

The fourth proportional to 568,066.80, 852,100.20 and 318,716.40 is: 478,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,066.80 : 852,100.20 = 318,716.40 : x
  2. Step 2: Convert to fraction form
    568,066.80/852,100.20 = 318,716.40/x
  3. Step 3: Cross multiply
    568,066.80x = 852,100.20 × 318,716.40
  4. Step 4: Simplify right side
    568,066.80x = 271,578,308,183.28
  5. Step 5: Solve for x
    x = 271,578,308,183.28/568,066.80
  6. Step 6: Final answer
    x = 478,074.60

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Similar ratio
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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.