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Finding the Fourth Proportional to 481,232.64, 721,845.68 and 376,140

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Solution

The fourth proportional to 481,232.64, 721,845.68 and 376,140 is: 564,207.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,232.64 : 721,845.68 = 376,140 : x
  2. Step 2: Convert to fraction form
    481,232.64/721,845.68 = 376,140/x
  3. Step 3: Cross multiply
    481,232.64x = 721,845.68 × 376,140
  4. Step 4: Simplify right side
    481,232.64x = 271,515,034,075.20
  5. Step 5: Solve for x
    x = 271,515,034,075.20/481,232.64
  6. Step 6: Final answer
    x = 564,207.44

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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.