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Finding the Fourth Proportional to 1,157.73, 1,736.60 and 292.04

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Solution

The fourth proportional to 1,157.73, 1,736.60 and 292.04 is: 438.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157.73 : 1,736.60 = 292.04 : x
  2. Step 2: Convert to fraction form
    1,157.73/1,736.60 = 292.04/x
  3. Step 3: Cross multiply
    1,157.73x = 1,736.60 × 292.04
  4. Step 4: Simplify right side
    1,157.73x = 507,162.80
  5. Step 5: Solve for x
    x = 507,162.80/1,157.73
  6. Step 6: Final answer
    x = 438.07

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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.