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Finding the Fourth Proportional to 1,169.76, 1,754.88 and 347.96

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Solution

The fourth proportional to 1,169.76, 1,754.88 and 347.96 is: 522.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169.76 : 1,754.88 = 347.96 : x
  2. Step 2: Convert to fraction form
    1,169.76/1,754.88 = 347.96/x
  3. Step 3: Cross multiply
    1,169.76x = 1,754.88 × 347.96
  4. Step 4: Simplify right side
    1,169.76x = 610,628.04
  5. Step 5: Solve for x
    x = 610,628.04/1,169.76
  6. Step 6: Final answer
    x = 522.01

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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.