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Finding the Fourth Proportional to 481,486,656.87, 721,192,277.12 and 325,180,956.78

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Solution

The fourth proportional to 481,486,656.87, 721,192,277.12 and 325,180,956.78 is: 487,070,599.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,486,656.87 : 721,192,277.12 = 325,180,956.78 : x
  2. Step 2: Convert to fraction form
    481,486,656.87/721,192,277.12 = 325,180,956.78/x
  3. Step 3: Cross multiply
    481,486,656.87x = 721,192,277.12 × 325,180,956.78
  4. Step 4: Simplify right side
    481,486,656.87x = 234,517,994,694,602,592
  5. Step 5: Solve for x
    x = 234,517,994,694,602,592/481,486,656.87
  6. Step 6: Final answer
    x = 487,070,599.67

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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.