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Finding the Fourth Proportional to 552,599,859.50, 762,931,962.48 and 351,770,049.50

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Solution

The fourth proportional to 552,599,859.50, 762,931,962.48 and 351,770,049.50 is: 485,661,748.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,599,859.50 : 762,931,962.48 = 351,770,049.50 : x
  2. Step 2: Convert to fraction form
    552,599,859.50/762,931,962.48 = 351,770,049.50/x
  3. Step 3: Cross multiply
    552,599,859.50x = 762,931,962.48 × 351,770,049.50
  4. Step 4: Simplify right side
    552,599,859.50x = 268,376,614,206,721,760
  5. Step 5: Solve for x
    x = 268,376,614,206,721,760/552,599,859.50
  6. Step 6: Final answer
    x = 485,661,748.90

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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.