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Finding the Fourth Proportional to 1,743.16, 2,614.59 and 703.75

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Solution

The fourth proportional to 1,743.16, 2,614.59 and 703.75 is: 1,055.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,743.16 : 2,614.59 = 703.75 : x
  2. Step 2: Convert to fraction form
    1,743.16/2,614.59 = 703.75/x
  3. Step 3: Cross multiply
    1,743.16x = 2,614.59 × 703.75
  4. Step 4: Simplify right side
    1,743.16x = 1,840,017.71
  5. Step 5: Solve for x
    x = 1,840,017.71/1,743.16
  6. Step 6: Final answer
    x = 1,055.56

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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.