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Finding the Fourth Proportional to 697,379.72, 959,364 and 610,949.48

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Solution

The fourth proportional to 697,379.72, 959,364 and 610,949.48 is: 840,464.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,379.72 : 959,364 = 610,949.48 : x
  2. Step 2: Convert to fraction form
    697,379.72/959,364 = 610,949.48/x
  3. Step 3: Cross multiply
    697,379.72x = 959,364 × 610,949.48
  4. Step 4: Simplify right side
    697,379.72x = 586,122,936,930.72
  5. Step 5: Solve for x
    x = 586,122,936,930.72/697,379.72
  6. Step 6: Final answer
    x = 840,464.56

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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.