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Finding the Fourth Proportional to 1,473.88, 2,034.95 and 914.57

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Solution

The fourth proportional to 1,473.88, 2,034.95 and 914.57 is: 1,262.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473.88 : 2,034.95 = 914.57 : x
  2. Step 2: Convert to fraction form
    1,473.88/2,034.95 = 914.57/x
  3. Step 3: Cross multiply
    1,473.88x = 2,034.95 × 914.57
  4. Step 4: Simplify right side
    1,473.88x = 1,861,099.65
  5. Step 5: Solve for x
    x = 1,861,099.65/1,473.88
  6. Step 6: Final answer
    x = 1,262.73

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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.