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Finding the Fourth Proportional to 1,704.76, 2,352.50 and 958.78

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Solution

The fourth proportional to 1,704.76, 2,352.50 and 958.78 is: 1,323.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704.76 : 2,352.50 = 958.78 : x
  2. Step 2: Convert to fraction form
    1,704.76/2,352.50 = 958.78/x
  3. Step 3: Cross multiply
    1,704.76x = 2,352.50 × 958.78
  4. Step 4: Simplify right side
    1,704.76x = 2,255,529.95
  5. Step 5: Solve for x
    x = 2,255,529.95/1,704.76
  6. Step 6: Final answer
    x = 1,323.08

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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.