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Finding the Fourth Proportional to 1,117.22, 1,676.07 and 337.23

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Solution

The fourth proportional to 1,117.22, 1,676.07 and 337.23 is: 505.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.22 : 1,676.07 = 337.23 : x
  2. Step 2: Convert to fraction form
    1,117.22/1,676.07 = 337.23/x
  3. Step 3: Cross multiply
    1,117.22x = 1,676.07 × 337.23
  4. Step 4: Simplify right side
    1,117.22x = 565,221.09
  5. Step 5: Solve for x
    x = 565,221.09/1,117.22
  6. Step 6: Final answer
    x = 505.92

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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.