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Finding the Fourth Proportional to 1,476.84, 2,039.82 and 1,105.46

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Solution

The fourth proportional to 1,476.84, 2,039.82 and 1,105.46 is: 1,526.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.84 : 2,039.82 = 1,105.46 : x
  2. Step 2: Convert to fraction form
    1,476.84/2,039.82 = 1,105.46/x
  3. Step 3: Cross multiply
    1,476.84x = 2,039.82 × 1,105.46
  4. Step 4: Simplify right side
    1,476.84x = 2,254,939.42
  5. Step 5: Solve for x
    x = 2,254,939.42/1,476.84
  6. Step 6: Final answer
    x = 1,526.87

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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.