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Finding the Fourth Proportional to 386,542.01, 533,270.49 and 259,258.61

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Solution

The fourth proportional to 386,542.01, 533,270.49 and 259,258.61 is: 357,671.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,542.01 : 533,270.49 = 259,258.61 : x
  2. Step 2: Convert to fraction form
    386,542.01/533,270.49 = 259,258.61/x
  3. Step 3: Cross multiply
    386,542.01x = 533,270.49 × 259,258.61
  4. Step 4: Simplify right side
    386,542.01x = 138,254,965,991.42
  5. Step 5: Solve for x
    x = 138,254,965,991.42/386,542.01
  6. Step 6: Final answer
    x = 357,671.26

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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.