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Finding the Fourth Proportional to 1,156.96, 1,596.56 and 633

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Solution

The fourth proportional to 1,156.96, 1,596.56 and 633 is: 873.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156.96 : 1,596.56 = 633 : x
  2. Step 2: Convert to fraction form
    1,156.96/1,596.56 = 633/x
  3. Step 3: Cross multiply
    1,156.96x = 1,596.56 × 633
  4. Step 4: Simplify right side
    1,156.96x = 1,010,622.48
  5. Step 5: Solve for x
    x = 1,010,622.48/1,156.96
  6. Step 6: Final answer
    x = 873.52

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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.