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Finding the Fourth Proportional to 654,090.56, 902,891.68 and 382,247.04

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Solution

The fourth proportional to 654,090.56, 902,891.68 and 382,247.04 is: 527,645.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,090.56 : 902,891.68 = 382,247.04 : x
  2. Step 2: Convert to fraction form
    654,090.56/902,891.68 = 382,247.04/x
  3. Step 3: Cross multiply
    654,090.56x = 902,891.68 × 382,247.04
  4. Step 4: Simplify right side
    654,090.56x = 345,127,672,120.63
  5. Step 5: Solve for x
    x = 345,127,672,120.63/654,090.56
  6. Step 6: Final answer
    x = 527,645.09

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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.