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Finding the Fourth Proportional to 299,448,019.40, 449,172,029.10 and 299,448,019.40

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Solution

The fourth proportional to 299,448,019.40, 449,172,029.10 and 299,448,019.40 is: 449,172,029.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,448,019.40 : 449,172,029.10 = 299,448,019.40 : x
  2. Step 2: Convert to fraction form
    299,448,019.40/449,172,029.10 = 299,448,019.40/x
  3. Step 3: Cross multiply
    299,448,019.40x = 449,172,029.10 × 299,448,019.40
  4. Step 4: Simplify right side
    299,448,019.40x = 134,503,674,483,874,160
  5. Step 5: Solve for x
    x = 134,503,674,483,874,160/299,448,019.40
  6. Step 6: Final answer
    x = 449,172,029.10

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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.