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Finding the Fourth Proportional to 1,795.01, 2,688.61 and 868.62

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Solution

The fourth proportional to 1,795.01, 2,688.61 and 868.62 is: 1,301.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,795.01 : 2,688.61 = 868.62 : x
  2. Step 2: Convert to fraction form
    1,795.01/2,688.61 = 868.62/x
  3. Step 3: Cross multiply
    1,795.01x = 2,688.61 × 868.62
  4. Step 4: Simplify right side
    1,795.01x = 2,335,380.42
  5. Step 5: Solve for x
    x = 2,335,380.42/1,795.01
  6. Step 6: Final answer
    x = 1,301.04

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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.