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Finding the Fourth Proportional to 488,889,765.20, 733,334,647.80 and 374,098,509.20

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Solution

The fourth proportional to 488,889,765.20, 733,334,647.80 and 374,098,509.20 is: 561,147,763.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,889,765.20 : 733,334,647.80 = 374,098,509.20 : x
  2. Step 2: Convert to fraction form
    488,889,765.20/733,334,647.80 = 374,098,509.20/x
  3. Step 3: Cross multiply
    488,889,765.20x = 733,334,647.80 × 374,098,509.20
  4. Step 4: Simplify right side
    488,889,765.20x = 274,339,398,486,687,040
  5. Step 5: Solve for x
    x = 274,339,398,486,687,040/488,889,765.20
  6. Step 6: Final answer
    x = 561,147,763.80

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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.