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Finding the Fourth Proportional to 631,090.47, 946,980.15 and 365,369.97

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Solution

The fourth proportional to 631,090.47, 946,980.15 and 365,369.97 is: 548,254.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,090.47 : 946,980.15 = 365,369.97 : x
  2. Step 2: Convert to fraction form
    631,090.47/946,980.15 = 365,369.97/x
  3. Step 3: Cross multiply
    631,090.47x = 946,980.15 × 365,369.97
  4. Step 4: Simplify right side
    631,090.47x = 345,998,111,177.13
  5. Step 5: Solve for x
    x = 345,998,111,177.13/631,090.47
  6. Step 6: Final answer
    x = 548,254.37

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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.