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Finding the Fourth Proportional to 529,149.87, 730,342.31 and 325,376.10

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Solution

The fourth proportional to 529,149.87, 730,342.31 and 325,376.10 is: 449,090.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,149.87 : 730,342.31 = 325,376.10 : x
  2. Step 2: Convert to fraction form
    529,149.87/730,342.31 = 325,376.10/x
  3. Step 3: Cross multiply
    529,149.87x = 730,342.31 × 325,376.10
  4. Step 4: Simplify right side
    529,149.87x = 237,635,930,865.91
  5. Step 5: Solve for x
    x = 237,635,930,865.91/529,149.87
  6. Step 6: Final answer
    x = 449,090.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.