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Finding the Fourth Proportional to 1,117.86, 1,676.44 and 468.44

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Solution

The fourth proportional to 1,117.86, 1,676.44 and 468.44 is: 702.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.86 : 1,676.44 = 468.44 : x
  2. Step 2: Convert to fraction form
    1,117.86/1,676.44 = 468.44/x
  3. Step 3: Cross multiply
    1,117.86x = 1,676.44 × 468.44
  4. Step 4: Simplify right side
    1,117.86x = 785,311.55
  5. Step 5: Solve for x
    x = 785,311.55/1,117.86
  6. Step 6: Final answer
    x = 702.51

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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.