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Finding the Fourth Proportional to 695,010.25, 959,107.66 and 393,204.25

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Solution

The fourth proportional to 695,010.25, 959,107.66 and 393,204.25 is: 542,618.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,010.25 : 959,107.66 = 393,204.25 : x
  2. Step 2: Convert to fraction form
    695,010.25/959,107.66 = 393,204.25/x
  3. Step 3: Cross multiply
    695,010.25x = 959,107.66 × 393,204.25
  4. Step 4: Simplify right side
    695,010.25x = 377,125,208,119.56
  5. Step 5: Solve for x
    x = 377,125,208,119.56/695,010.25
  6. Step 6: Final answer
    x = 542,618.20

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Double scale
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1.5x scale

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.