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Finding the Fourth Proportional to 1,147.01, 1,720.64 and 366.83

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Solution

The fourth proportional to 1,147.01, 1,720.64 and 366.83 is: 550.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147.01 : 1,720.64 = 366.83 : x
  2. Step 2: Convert to fraction form
    1,147.01/1,720.64 = 366.83/x
  3. Step 3: Cross multiply
    1,147.01x = 1,720.64 × 366.83
  4. Step 4: Simplify right side
    1,147.01x = 631,182.37
  5. Step 5: Solve for x
    x = 631,182.37/1,147.01
  6. Step 6: Final answer
    x = 550.28

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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.