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Finding the Fourth Proportional to 1,362.76, 2,044 and 623.08

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Solution

The fourth proportional to 1,362.76, 2,044 and 623.08 is: 934.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362.76 : 2,044 = 623.08 : x
  2. Step 2: Convert to fraction form
    1,362.76/2,044 = 623.08/x
  3. Step 3: Cross multiply
    1,362.76x = 2,044 × 623.08
  4. Step 4: Simplify right side
    1,362.76x = 1,273,575.52
  5. Step 5: Solve for x
    x = 1,273,575.52/1,362.76
  6. Step 6: Final answer
    x = 934.56

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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.