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Finding the Fourth Proportional to 1,191.04, 1,786.51 and 497.53

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Solution

The fourth proportional to 1,191.04, 1,786.51 and 497.53 is: 746.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191.04 : 1,786.51 = 497.53 : x
  2. Step 2: Convert to fraction form
    1,191.04/1,786.51 = 497.53/x
  3. Step 3: Cross multiply
    1,191.04x = 1,786.51 × 497.53
  4. Step 4: Simplify right side
    1,191.04x = 888,832.33
  5. Step 5: Solve for x
    x = 888,832.33/1,191.04
  6. Step 6: Final answer
    x = 746.27

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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.