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Finding the Fourth Proportional to 1,168.84, 1,753.66 and 520.04

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Solution

The fourth proportional to 1,168.84, 1,753.66 and 520.04 is: 780.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.84 : 1,753.66 = 520.04 : x
  2. Step 2: Convert to fraction form
    1,168.84/1,753.66 = 520.04/x
  3. Step 3: Cross multiply
    1,168.84x = 1,753.66 × 520.04
  4. Step 4: Simplify right side
    1,168.84x = 911,973.35
  5. Step 5: Solve for x
    x = 911,973.35/1,168.84
  6. Step 6: Final answer
    x = 780.24

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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.