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Finding the Fourth Proportional to 695,381.52, 959,593.32 and 427,057.68

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Solution

The fourth proportional to 695,381.52, 959,593.32 and 427,057.68 is: 589,319.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,381.52 : 959,593.32 = 427,057.68 : x
  2. Step 2: Convert to fraction form
    695,381.52/959,593.32 = 427,057.68/x
  3. Step 3: Cross multiply
    695,381.52x = 959,593.32 × 427,057.68
  4. Step 4: Simplify right side
    695,381.52x = 409,801,696,982.70
  5. Step 5: Solve for x
    x = 409,801,696,982.70/695,381.52
  6. Step 6: Final answer
    x = 589,319.22

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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.