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Finding the Fourth Proportional to 627,837,087.52, 866,408,304.76 and 345,573,493.53

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Solution

The fourth proportional to 627,837,087.52, 866,408,304.76 and 345,573,493.53 is: 476,887,636.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,837,087.52 : 866,408,304.76 = 345,573,493.53 : x
  2. Step 2: Convert to fraction form
    627,837,087.52/866,408,304.76 = 345,573,493.53/x
  3. Step 3: Cross multiply
    627,837,087.52x = 866,408,304.76 × 345,573,493.53
  4. Step 4: Simplify right side
    627,837,087.52x = 299,407,744,699,318,080
  5. Step 5: Solve for x
    x = 299,407,744,699,318,080/627,837,087.52
  6. Step 6: Final answer
    x = 476,887,636.38

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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.