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Finding the Fourth Proportional to 627,780,672.10, 941,671,008.15 and 627,780,672.10

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Solution

The fourth proportional to 627,780,672.10, 941,671,008.15 and 627,780,672.10 is: 941,671,008.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,780,672.10 : 941,671,008.15 = 627,780,672.10 : x
  2. Step 2: Convert to fraction form
    627,780,672.10/941,671,008.15 = 627,780,672.10/x
  3. Step 3: Cross multiply
    627,780,672.10x = 941,671,008.15 × 627,780,672.10
  4. Step 4: Simplify right side
    627,780,672.10x = 591,162,858,393,491,584
  5. Step 5: Solve for x
    x = 591,162,858,393,491,584/627,780,672.10
  6. Step 6: Final answer
    x = 941,671,008.15

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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.