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Finding the Fourth Proportional to 352,656.77, 486,815.31 and 238,090.59

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Solution

The fourth proportional to 352,656.77, 486,815.31 and 238,090.59 is: 328,665.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,656.77 : 486,815.31 = 238,090.59 : x
  2. Step 2: Convert to fraction form
    352,656.77/486,815.31 = 238,090.59/x
  3. Step 3: Cross multiply
    352,656.77x = 486,815.31 × 238,090.59
  4. Step 4: Simplify right side
    352,656.77x = 115,906,144,378.93
  5. Step 5: Solve for x
    x = 115,906,144,378.93/352,656.77
  6. Step 6: Final answer
    x = 328,665.59

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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.