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Finding the Fourth Proportional to 1,032.93, 1,549.26 and 408.22

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Solution

The fourth proportional to 1,032.93, 1,549.26 and 408.22 is: 612.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.93 : 1,549.26 = 408.22 : x
  2. Step 2: Convert to fraction form
    1,032.93/1,549.26 = 408.22/x
  3. Step 3: Cross multiply
    1,032.93x = 1,549.26 × 408.22
  4. Step 4: Simplify right side
    1,032.93x = 632,438.92
  5. Step 5: Solve for x
    x = 632,438.92/1,032.93
  6. Step 6: Final answer
    x = 612.28

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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.