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Finding the Fourth Proportional to 291,327,435, 436,707,126 and 116,398,315.44

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Solution

The fourth proportional to 291,327,435, 436,707,126 and 116,398,315.44 is: 174,483,991.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,327,435 : 436,707,126 = 116,398,315.44 : x
  2. Step 2: Convert to fraction form
    291,327,435/436,707,126 = 116,398,315.44/x
  3. Step 3: Cross multiply
    291,327,435x = 436,707,126 × 116,398,315.44
  4. Step 4: Simplify right side
    291,327,435x = 50,831,973,807,043,824
  5. Step 5: Solve for x
    x = 50,831,973,807,043,824/291,327,435
  6. Step 6: Final answer
    x = 174,483,991.89

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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.