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Finding the Fourth Proportional to 521,361.70, 782,057.16 and 184,354.72

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Solution

The fourth proportional to 521,361.70, 782,057.16 and 184,354.72 is: 276,537.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,361.70 : 782,057.16 = 184,354.72 : x
  2. Step 2: Convert to fraction form
    521,361.70/782,057.16 = 184,354.72/x
  3. Step 3: Cross multiply
    521,361.70x = 782,057.16 × 184,354.72
  4. Step 4: Simplify right side
    521,361.70x = 144,175,928,755.80
  5. Step 5: Solve for x
    x = 144,175,928,755.80/521,361.70
  6. Step 6: Final answer
    x = 276,537.25

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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.