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Finding the Fourth Proportional to 1,179.53, 1,768.83 and 357.51

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Solution

The fourth proportional to 1,179.53, 1,768.83 and 357.51 is: 536.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179.53 : 1,768.83 = 357.51 : x
  2. Step 2: Convert to fraction form
    1,179.53/1,768.83 = 357.51/x
  3. Step 3: Cross multiply
    1,179.53x = 1,768.83 × 357.51
  4. Step 4: Simplify right side
    1,179.53x = 632,374.41
  5. Step 5: Solve for x
    x = 632,374.41/1,179.53
  6. Step 6: Final answer
    x = 536.13

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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.