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Finding the Fourth Proportional to 1,044.23, 1,564.08 and 982.89

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Solution

The fourth proportional to 1,044.23, 1,564.08 and 982.89 is: 1,472.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.23 : 1,564.08 = 982.89 : x
  2. Step 2: Convert to fraction form
    1,044.23/1,564.08 = 982.89/x
  3. Step 3: Cross multiply
    1,044.23x = 1,564.08 × 982.89
  4. Step 4: Simplify right side
    1,044.23x = 1,537,310.77
  5. Step 5: Solve for x
    x = 1,537,310.77/1,044.23
  6. Step 6: Final answer
    x = 1,472.20

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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.