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Finding the Fourth Proportional to 2,416.70, 3,625.05 and 685.34

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Solution

The fourth proportional to 2,416.70, 3,625.05 and 685.34 is: 1,028.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,416.70 : 3,625.05 = 685.34 : x
  2. Step 2: Convert to fraction form
    2,416.70/3,625.05 = 685.34/x
  3. Step 3: Cross multiply
    2,416.70x = 3,625.05 × 685.34
  4. Step 4: Simplify right side
    2,416.70x = 2,484,391.77
  5. Step 5: Solve for x
    x = 2,484,391.77/2,416.70
  6. Step 6: Final answer
    x = 1,028.01

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.