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Finding the Fourth Proportional to 1,894.40, 2,614.24 and 1,108.48

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Solution

The fourth proportional to 1,894.40, 2,614.24 and 1,108.48 is: 1,529.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.40 : 2,614.24 = 1,108.48 : x
  2. Step 2: Convert to fraction form
    1,894.40/2,614.24 = 1,108.48/x
  3. Step 3: Cross multiply
    1,894.40x = 2,614.24 × 1,108.48
  4. Step 4: Simplify right side
    1,894.40x = 2,897,832.76
  5. Step 5: Solve for x
    x = 2,897,832.76/1,894.40
  6. Step 6: Final answer
    x = 1,529.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.