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Finding the Fourth Proportional to 1,032.58, 1,548.50 and 447.55

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Solution

The fourth proportional to 1,032.58, 1,548.50 and 447.55 is: 671.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.58 : 1,548.50 = 447.55 : x
  2. Step 2: Convert to fraction form
    1,032.58/1,548.50 = 447.55/x
  3. Step 3: Cross multiply
    1,032.58x = 1,548.50 × 447.55
  4. Step 4: Simplify right side
    1,032.58x = 693,028.94
  5. Step 5: Solve for x
    x = 693,028.94/1,032.58
  6. Step 6: Final answer
    x = 671.17

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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.