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Finding the Fourth Proportional to 559,872,800.80, 839,809,201.20 and 524,040,992.80

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Solution

The fourth proportional to 559,872,800.80, 839,809,201.20 and 524,040,992.80 is: 786,061,489.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,872,800.80 : 839,809,201.20 = 524,040,992.80 : x
  2. Step 2: Convert to fraction form
    559,872,800.80/839,809,201.20 = 524,040,992.80/x
  3. Step 3: Cross multiply
    559,872,800.80x = 839,809,201.20 × 524,040,992.80
  4. Step 4: Simplify right side
    559,872,800.80x = 440,094,447,559,422,976
  5. Step 5: Solve for x
    x = 440,094,447,559,422,976/559,872,800.80
  6. Step 6: Final answer
    x = 786,061,489.20

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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.