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Finding the Fourth Proportional to 695,384.61, 959,466.27 and 393,578.61

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Solution

The fourth proportional to 695,384.61, 959,466.27 and 393,578.61 is: 543,045.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,384.61 : 959,466.27 = 393,578.61 : x
  2. Step 2: Convert to fraction form
    695,384.61/959,466.27 = 393,578.61/x
  3. Step 3: Cross multiply
    695,384.61x = 959,466.27 × 393,578.61
  4. Step 4: Simplify right side
    695,384.61x = 377,625,400,888.49
  5. Step 5: Solve for x
    x = 377,625,400,888.49/695,384.61
  6. Step 6: Final answer
    x = 543,045.38

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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.