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Finding the Fourth Proportional to 695,009.25, 959,106.29 and 393,203.25

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Solution

The fourth proportional to 695,009.25, 959,106.29 and 393,203.25 is: 542,616.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,009.25 : 959,106.29 = 393,203.25 : x
  2. Step 2: Convert to fraction form
    695,009.25/959,106.29 = 393,203.25/x
  3. Step 3: Cross multiply
    695,009.25x = 959,106.29 × 393,203.25
  4. Step 4: Simplify right side
    695,009.25x = 377,123,708,357.43
  5. Step 5: Solve for x
    x = 377,123,708,357.43/695,009.25
  6. Step 6: Final answer
    x = 542,616.82

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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.