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Finding the Fourth Proportional to 1,263.74, 1,744.00 and 732.65

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Solution

The fourth proportional to 1,263.74, 1,744.00 and 732.65 is: 1,011.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.74 : 1,744.00 = 732.65 : x
  2. Step 2: Convert to fraction form
    1,263.74/1,744.00 = 732.65/x
  3. Step 3: Cross multiply
    1,263.74x = 1,744.00 × 732.65
  4. Step 4: Simplify right side
    1,263.74x = 1,277,731.05
  5. Step 5: Solve for x
    x = 1,277,731.05/1,263.74
  6. Step 6: Final answer
    x = 1,011.08

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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.