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Finding the Fourth Proportional to 1,744.65, 2,407.60 and 958.69

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Solution

The fourth proportional to 1,744.65, 2,407.60 and 958.69 is: 1,322.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,744.65 : 2,407.60 = 958.69 : x
  2. Step 2: Convert to fraction form
    1,744.65/2,407.60 = 958.69/x
  3. Step 3: Cross multiply
    1,744.65x = 2,407.60 × 958.69
  4. Step 4: Simplify right side
    1,744.65x = 2,308,133.63
  5. Step 5: Solve for x
    x = 2,308,133.63/1,744.65
  6. Step 6: Final answer
    x = 1,322.98

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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.