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Finding the Fourth Proportional to 1,176.53, 1,763.17 and 930.08

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Solution

The fourth proportional to 1,176.53, 1,763.17 and 930.08 is: 1,393.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.53 : 1,763.17 = 930.08 : x
  2. Step 2: Convert to fraction form
    1,176.53/1,763.17 = 930.08/x
  3. Step 3: Cross multiply
    1,176.53x = 1,763.17 × 930.08
  4. Step 4: Simplify right side
    1,176.53x = 1,639,891.24
  5. Step 5: Solve for x
    x = 1,639,891.24/1,176.53
  6. Step 6: Final answer
    x = 1,393.84

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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.