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Finding the Fourth Proportional to 1,116.72, 1,675.05 and 467.43

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Solution

The fourth proportional to 1,116.72, 1,675.05 and 467.43 is: 701.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.72 : 1,675.05 = 467.43 : x
  2. Step 2: Convert to fraction form
    1,116.72/1,675.05 = 467.43/x
  3. Step 3: Cross multiply
    1,116.72x = 1,675.05 × 467.43
  4. Step 4: Simplify right side
    1,116.72x = 782,968.62
  5. Step 5: Solve for x
    x = 782,968.62/1,116.72
  6. Step 6: Final answer
    x = 701.13

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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.