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Finding the Fourth Proportional to 635,343.13, 947,410.10 and 547,163.29

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Solution

The fourth proportional to 635,343.13, 947,410.10 and 547,163.29 is: 815,918.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,343.13 : 947,410.10 = 547,163.29 : x
  2. Step 2: Convert to fraction form
    635,343.13/947,410.10 = 547,163.29/x
  3. Step 3: Cross multiply
    635,343.13x = 947,410.10 × 547,163.29
  4. Step 4: Simplify right side
    635,343.13x = 518,388,027,295.23
  5. Step 5: Solve for x
    x = 518,388,027,295.23/635,343.13
  6. Step 6: Final answer
    x = 815,918.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.