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Finding the Fourth Proportional to 1,184.96, 1,635.26 and 653.85

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Solution

The fourth proportional to 1,184.96, 1,635.26 and 653.85 is: 902.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.96 : 1,635.26 = 653.85 : x
  2. Step 2: Convert to fraction form
    1,184.96/1,635.26 = 653.85/x
  3. Step 3: Cross multiply
    1,184.96x = 1,635.26 × 653.85
  4. Step 4: Simplify right side
    1,184.96x = 1,069,211.48
  5. Step 5: Solve for x
    x = 1,069,211.48/1,184.96
  6. Step 6: Final answer
    x = 902.32

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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.