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Finding the Fourth Proportional to 1,784.88, 2,463.48 and 1,313.46

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Solution

The fourth proportional to 1,784.88, 2,463.48 and 1,313.46 is: 1,812.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784.88 : 2,463.48 = 1,313.46 : x
  2. Step 2: Convert to fraction form
    1,784.88/2,463.48 = 1,313.46/x
  3. Step 3: Cross multiply
    1,784.88x = 2,463.48 × 1,313.46
  4. Step 4: Simplify right side
    1,784.88x = 3,235,682.44
  5. Step 5: Solve for x
    x = 3,235,682.44/1,784.88
  6. Step 6: Final answer
    x = 1,812.83

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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.