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Finding the Fourth Proportional to 1,044.34, 1,441.20 and 572.26

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Solution

The fourth proportional to 1,044.34, 1,441.20 and 572.26 is: 789.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.34 : 1,441.20 = 572.26 : x
  2. Step 2: Convert to fraction form
    1,044.34/1,441.20 = 572.26/x
  3. Step 3: Cross multiply
    1,044.34x = 1,441.20 × 572.26
  4. Step 4: Simplify right side
    1,044.34x = 824,741.11
  5. Step 5: Solve for x
    x = 824,741.11/1,044.34
  6. Step 6: Final answer
    x = 789.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.