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Finding the Fourth Proportional to 1,032.55, 1,548.90 and 416.26

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Solution

The fourth proportional to 1,032.55, 1,548.90 and 416.26 is: 624.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.55 : 1,548.90 = 416.26 : x
  2. Step 2: Convert to fraction form
    1,032.55/1,548.90 = 416.26/x
  3. Step 3: Cross multiply
    1,032.55x = 1,548.90 × 416.26
  4. Step 4: Simplify right side
    1,032.55x = 644,735.29
  5. Step 5: Solve for x
    x = 644,735.29/1,032.55
  6. Step 6: Final answer
    x = 624.41

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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.