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Finding the Fourth Proportional to 695,386.62, 959,469.02 and 393,580.62

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Solution

The fourth proportional to 695,386.62, 959,469.02 and 393,580.62 is: 543,048.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,386.62 : 959,469.02 = 393,580.62 : x
  2. Step 2: Convert to fraction form
    695,386.62/959,469.02 = 393,580.62/x
  3. Step 3: Cross multiply
    695,386.62x = 959,469.02 × 393,580.62
  4. Step 4: Simplify right side
    695,386.62x = 377,628,411,762.39
  5. Step 5: Solve for x
    x = 377,628,411,762.39/695,386.62
  6. Step 6: Final answer
    x = 543,048.14

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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.