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Finding the Fourth Proportional to 1,231.76, 1,847.65 and 501.17

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Solution

The fourth proportional to 1,231.76, 1,847.65 and 501.17 is: 751.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.76 : 1,847.65 = 501.17 : x
  2. Step 2: Convert to fraction form
    1,231.76/1,847.65 = 501.17/x
  3. Step 3: Cross multiply
    1,231.76x = 1,847.65 × 501.17
  4. Step 4: Simplify right side
    1,231.76x = 925,976.26
  5. Step 5: Solve for x
    x = 925,976.26/1,231.76
  6. Step 6: Final answer
    x = 751.75

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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.