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Finding the Fourth Proportional to 532,992,026.80, 799,488,040.20 and 411,910,375.60

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Solution

The fourth proportional to 532,992,026.80, 799,488,040.20 and 411,910,375.60 is: 617,865,563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,992,026.80 : 799,488,040.20 = 411,910,375.60 : x
  2. Step 2: Convert to fraction form
    532,992,026.80/799,488,040.20 = 411,910,375.60/x
  3. Step 3: Cross multiply
    532,992,026.80x = 799,488,040.20 × 411,910,375.60
  4. Step 4: Simplify right side
    532,992,026.80x = 329,317,418,926,489,920
  5. Step 5: Solve for x
    x = 329,317,418,926,489,920/532,992,026.80
  6. Step 6: Final answer
    x = 617,865,563.40

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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.