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Finding the Fourth Proportional to 374,796.52, 517,388.10 and 239,012.68

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Solution

The fourth proportional to 374,796.52, 517,388.10 and 239,012.68 is: 329,945.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,796.52 : 517,388.10 = 239,012.68 : x
  2. Step 2: Convert to fraction form
    374,796.52/517,388.10 = 239,012.68/x
  3. Step 3: Cross multiply
    374,796.52x = 517,388.10 × 239,012.68
  4. Step 4: Simplify right side
    374,796.52x = 123,662,316,381.11
  5. Step 5: Solve for x
    x = 123,662,316,381.11/374,796.52
  6. Step 6: Final answer
    x = 329,945.21

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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.