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Finding the Fourth Proportional to 633,756,449.66, 949,963,729.50 and 213,177,437.55

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Solution

The fourth proportional to 633,756,449.66, 949,963,729.50 and 213,177,437.55 is: 319,540,469.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,756,449.66 : 949,963,729.50 = 213,177,437.55 : x
  2. Step 2: Convert to fraction form
    633,756,449.66/949,963,729.50 = 213,177,437.55/x
  3. Step 3: Cross multiply
    633,756,449.66x = 949,963,729.50 × 213,177,437.55
  4. Step 4: Simplify right side
    633,756,449.66x = 202,510,833,620,251,360
  5. Step 5: Solve for x
    x = 202,510,833,620,251,360/633,756,449.66
  6. Step 6: Final answer
    x = 319,540,469.73

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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.