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Finding the Fourth Proportional to 3,606.45, 5,409.81 and 1,009.32

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Solution

The fourth proportional to 3,606.45, 5,409.81 and 1,009.32 is: 1,514.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.45 : 5,409.81 = 1,009.32 : x
  2. Step 2: Convert to fraction form
    3,606.45/5,409.81 = 1,009.32/x
  3. Step 3: Cross multiply
    3,606.45x = 5,409.81 × 1,009.32
  4. Step 4: Simplify right side
    3,606.45x = 5,460,229.43
  5. Step 5: Solve for x
    x = 5,460,229.43/3,606.45
  6. Step 6: Final answer
    x = 1,514.02

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Why These Related Problems?

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