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Finding the Fourth Proportional to 1,164.50, 1,745.99 and 616.94

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Solution

The fourth proportional to 1,164.50, 1,745.99 and 616.94 is: 925.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.50 : 1,745.99 = 616.94 : x
  2. Step 2: Convert to fraction form
    1,164.50/1,745.99 = 616.94/x
  3. Step 3: Cross multiply
    1,164.50x = 1,745.99 × 616.94
  4. Step 4: Simplify right side
    1,164.50x = 1,077,171.07
  5. Step 5: Solve for x
    x = 1,077,171.07/1,164.50
  6. Step 6: Final answer
    x = 925.01

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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.