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Finding the Fourth Proportional to 1,176.86, 1,624.64 and 735.41

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Solution

The fourth proportional to 1,176.86, 1,624.64 and 735.41 is: 1,015.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.86 : 1,624.64 = 735.41 : x
  2. Step 2: Convert to fraction form
    1,176.86/1,624.64 = 735.41/x
  3. Step 3: Cross multiply
    1,176.86x = 1,624.64 × 735.41
  4. Step 4: Simplify right side
    1,176.86x = 1,194,764.70
  5. Step 5: Solve for x
    x = 1,194,764.70/1,176.86
  6. Step 6: Final answer
    x = 1,015.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.