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Finding the Fourth Proportional to 1,173.06, 1,759.17 and 351.18

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Solution

The fourth proportional to 1,173.06, 1,759.17 and 351.18 is: 526.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.06 : 1,759.17 = 351.18 : x
  2. Step 2: Convert to fraction form
    1,173.06/1,759.17 = 351.18/x
  3. Step 3: Cross multiply
    1,173.06x = 1,759.17 × 351.18
  4. Step 4: Simplify right side
    1,173.06x = 617,785.32
  5. Step 5: Solve for x
    x = 617,785.32/1,173.06
  6. Step 6: Final answer
    x = 526.64

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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.