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Finding the Fourth Proportional to 488,767,681.78, 674,494,658.85 and 265,749,360.37

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Solution

The fourth proportional to 488,767,681.78, 674,494,658.85 and 265,749,360.37 is: 366,731,539.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,767,681.78 : 674,494,658.85 = 265,749,360.37 : x
  2. Step 2: Convert to fraction form
    488,767,681.78/674,494,658.85 = 265,749,360.37/x
  3. Step 3: Cross multiply
    488,767,681.78x = 674,494,658.85 × 265,749,360.37
  4. Step 4: Simplify right side
    488,767,681.78x = 179,246,524,161,676,512
  5. Step 5: Solve for x
    x = 179,246,524,161,676,512/488,767,681.78
  6. Step 6: Final answer
    x = 366,731,539.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.