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Finding the Fourth Proportional to 577,930,810.80, 868,311,793.80 and 434,603,578.80

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Solution

The fourth proportional to 577,930,810.80, 868,311,793.80 and 434,603,578.80 is: 652,969,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,930,810.80 : 868,311,793.80 = 434,603,578.80 : x
  2. Step 2: Convert to fraction form
    577,930,810.80/868,311,793.80 = 434,603,578.80/x
  3. Step 3: Cross multiply
    577,930,810.80x = 868,311,793.80 × 434,603,578.80
  4. Step 4: Simplify right side
    577,930,810.80x = 377,371,413,099,727,616
  5. Step 5: Solve for x
    x = 377,371,413,099,727,616/577,930,810.80
  6. Step 6: Final answer
    x = 652,969,881.60

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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.