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Finding the Fourth Proportional to 629,513.64, 943,531.20 and 291,843.54

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Solution

The fourth proportional to 629,513.64, 943,531.20 and 291,843.54 is: 437,422.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,513.64 : 943,531.20 = 291,843.54 : x
  2. Step 2: Convert to fraction form
    629,513.64/943,531.20 = 291,843.54/x
  3. Step 3: Cross multiply
    629,513.64x = 943,531.20 × 291,843.54
  4. Step 4: Simplify right side
    629,513.64x = 275,363,485,508.45
  5. Step 5: Solve for x
    x = 275,363,485,508.45/629,513.64
  6. Step 6: Final answer
    x = 437,422.59

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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.