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Finding the Fourth Proportional to 1,755.53, 2,633.40 and 522.83

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Solution

The fourth proportional to 1,755.53, 2,633.40 and 522.83 is: 784.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755.53 : 2,633.40 = 522.83 : x
  2. Step 2: Convert to fraction form
    1,755.53/2,633.40 = 522.83/x
  3. Step 3: Cross multiply
    1,755.53x = 2,633.40 × 522.83
  4. Step 4: Simplify right side
    1,755.53x = 1,376,827.11
  5. Step 5: Solve for x
    x = 1,376,827.11/1,755.53
  6. Step 6: Final answer
    x = 784.28

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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.