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Finding the Fourth Proportional to 1,696.65, 2,544.86 and 526.63

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Solution

The fourth proportional to 1,696.65, 2,544.86 and 526.63 is: 789.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696.65 : 2,544.86 = 526.63 : x
  2. Step 2: Convert to fraction form
    1,696.65/2,544.86 = 526.63/x
  3. Step 3: Cross multiply
    1,696.65x = 2,544.86 × 526.63
  4. Step 4: Simplify right side
    1,696.65x = 1,340,190.68
  5. Step 5: Solve for x
    x = 1,340,190.68/1,696.65
  6. Step 6: Final answer
    x = 789.90

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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.