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Finding the Fourth Proportional to 610,889,692.95, 843,449,543.64 and 571,860,665.91

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Solution

The fourth proportional to 610,889,692.95, 843,449,543.64 and 571,860,665.91 is: 789,562,540.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,889,692.95 : 843,449,543.64 = 571,860,665.91 : x
  2. Step 2: Convert to fraction form
    610,889,692.95/843,449,543.64 = 571,860,665.91/x
  3. Step 3: Cross multiply
    610,889,692.95x = 843,449,543.64 × 571,860,665.91
  4. Step 4: Simplify right side
    610,889,692.95x = 482,335,617,687,456,000
  5. Step 5: Solve for x
    x = 482,335,617,687,456,000/610,889,692.95
  6. Step 6: Final answer
    x = 789,562,540.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.