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Finding the Fourth Proportional to 552,012,272.40, 827,315,069.40 and 293,351,408.40

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Solution

The fourth proportional to 552,012,272.40, 827,315,069.40 and 293,351,408.40 is: 439,653,342.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,012,272.40 : 827,315,069.40 = 293,351,408.40 : x
  2. Step 2: Convert to fraction form
    552,012,272.40/827,315,069.40 = 293,351,408.40/x
  3. Step 3: Cross multiply
    552,012,272.40x = 827,315,069.40 × 293,351,408.40
  4. Step 4: Simplify right side
    552,012,272.40x = 242,694,040,799,033,728
  5. Step 5: Solve for x
    x = 242,694,040,799,033,728/552,012,272.40
  6. Step 6: Final answer
    x = 439,653,342.75

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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.