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Finding the Fourth Proportional to 695,436.41, 959,637.71 and 393,630.41

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Solution

The fourth proportional to 695,436.41, 959,637.71 and 393,630.41 is: 543,173.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,436.41 : 959,637.71 = 393,630.41 : x
  2. Step 2: Convert to fraction form
    695,436.41/959,637.71 = 393,630.41/x
  3. Step 3: Cross multiply
    695,436.41x = 959,637.71 × 393,630.41
  4. Step 4: Simplify right side
    695,436.41x = 377,742,583,270.61
  5. Step 5: Solve for x
    x = 377,742,583,270.61/695,436.41
  6. Step 6: Final answer
    x = 543,173.43

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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.