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Finding the Fourth Proportional to 555,388,015.66, 832,494,658.18 and 205,409,168.96

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Solution

The fourth proportional to 555,388,015.66, 832,494,658.18 and 205,409,168.96 is: 307,896,517.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,388,015.66 : 832,494,658.18 = 205,409,168.96 : x
  2. Step 2: Convert to fraction form
    555,388,015.66/832,494,658.18 = 205,409,168.96/x
  3. Step 3: Cross multiply
    555,388,015.66x = 832,494,658.18 × 205,409,168.96
  4. Step 4: Simplify right side
    555,388,015.66x = 171,002,035,900,393,056
  5. Step 5: Solve for x
    x = 171,002,035,900,393,056/555,388,015.66
  6. Step 6: Final answer
    x = 307,896,517.53

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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.