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Finding the Fourth Proportional to 1,149.80, 1,724.96 and 500.60

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Solution

The fourth proportional to 1,149.80, 1,724.96 and 500.60 is: 751.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149.80 : 1,724.96 = 500.60 : x
  2. Step 2: Convert to fraction form
    1,149.80/1,724.96 = 500.60/x
  3. Step 3: Cross multiply
    1,149.80x = 1,724.96 × 500.60
  4. Step 4: Simplify right side
    1,149.80x = 863,514.98
  5. Step 5: Solve for x
    x = 863,514.98/1,149.80
  6. Step 6: Final answer
    x = 751.01

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.