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Finding the Fourth Proportional to 1,015.60, 1,523.81 and 366.38

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Solution

The fourth proportional to 1,015.60, 1,523.81 and 366.38 is: 549.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015.60 : 1,523.81 = 366.38 : x
  2. Step 2: Convert to fraction form
    1,015.60/1,523.81 = 366.38/x
  3. Step 3: Cross multiply
    1,015.60x = 1,523.81 × 366.38
  4. Step 4: Simplify right side
    1,015.60x = 558,293.51
  5. Step 5: Solve for x
    x = 558,293.51/1,015.60
  6. Step 6: Final answer
    x = 549.72

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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.