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Finding the Fourth Proportional to 1,193.08, 1,644.96 and 984.10

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Solution

The fourth proportional to 1,193.08, 1,644.96 and 984.10 is: 1,356.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.08 : 1,644.96 = 984.10 : x
  2. Step 2: Convert to fraction form
    1,193.08/1,644.96 = 984.10/x
  3. Step 3: Cross multiply
    1,193.08x = 1,644.96 × 984.10
  4. Step 4: Simplify right side
    1,193.08x = 1,618,805.14
  5. Step 5: Solve for x
    x = 1,618,805.14/1,193.08
  6. Step 6: Final answer
    x = 1,356.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.