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Finding the Fourth Proportional to 576,503,792.76, 864,576,839.86 and 207,990,839.69

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Solution

The fourth proportional to 576,503,792.76, 864,576,839.86 and 207,990,839.69 is: 311,921,734.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,503,792.76 : 864,576,839.86 = 207,990,839.69 : x
  2. Step 2: Convert to fraction form
    576,503,792.76/864,576,839.86 = 207,990,839.69/x
  3. Step 3: Cross multiply
    576,503,792.76x = 864,576,839.86 × 207,990,839.69
  4. Step 4: Simplify right side
    576,503,792.76x = 179,824,062,899,008,064
  5. Step 5: Solve for x
    x = 179,824,062,899,008,064/576,503,792.76
  6. Step 6: Final answer
    x = 311,921,734.36

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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.