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Finding the Fourth Proportional to 696,917.94, 959,954.81 and 492,617.63

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Solution

The fourth proportional to 696,917.94, 959,954.81 and 492,617.63 is: 678,545.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,917.94 : 959,954.81 = 492,617.63 : x
  2. Step 2: Convert to fraction form
    696,917.94/959,954.81 = 492,617.63/x
  3. Step 3: Cross multiply
    696,917.94x = 959,954.81 × 492,617.63
  4. Step 4: Simplify right side
    696,917.94x = 472,890,659,930.74
  5. Step 5: Solve for x
    x = 472,890,659,930.74/696,917.94
  6. Step 6: Final answer
    x = 678,545.68

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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.