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Finding the Fourth Proportional to 1,117.75, 1,676.64 and 296.02

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Solution

The fourth proportional to 1,117.75, 1,676.64 and 296.02 is: 444.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.75 : 1,676.64 = 296.02 : x
  2. Step 2: Convert to fraction form
    1,117.75/1,676.64 = 296.02/x
  3. Step 3: Cross multiply
    1,117.75x = 1,676.64 × 296.02
  4. Step 4: Simplify right side
    1,117.75x = 496,321.35
  5. Step 5: Solve for x
    x = 496,321.35/1,117.75
  6. Step 6: Final answer
    x = 444.04

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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.