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Finding the Fourth Proportional to 449,352,712.10, 629,943,143.50 and 449,352,712.10

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Solution

The fourth proportional to 449,352,712.10, 629,943,143.50 and 449,352,712.10 is: 629,943,143.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,352,712.10 : 629,943,143.50 = 449,352,712.10 : x
  2. Step 2: Convert to fraction form
    449,352,712.10/629,943,143.50 = 449,352,712.10/x
  3. Step 3: Cross multiply
    449,352,712.10x = 629,943,143.50 × 449,352,712.10
  4. Step 4: Simplify right side
    449,352,712.10x = 283,066,660,000,524,512
  5. Step 5: Solve for x
    x = 283,066,660,000,524,512/449,352,712.10
  6. Step 6: Final answer
    x = 629,943,143.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.