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Finding the Fourth Proportional to 1,063.13, 1,594.96 and 405.27

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Solution

The fourth proportional to 1,063.13, 1,594.96 and 405.27 is: 608.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063.13 : 1,594.96 = 405.27 : x
  2. Step 2: Convert to fraction form
    1,063.13/1,594.96 = 405.27/x
  3. Step 3: Cross multiply
    1,063.13x = 1,594.96 × 405.27
  4. Step 4: Simplify right side
    1,063.13x = 646,388.43
  5. Step 5: Solve for x
    x = 646,388.43/1,063.13
  6. Step 6: Final answer
    x = 608.01

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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.