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Finding the Fourth Proportional to 1,044.74, 1,567.14 and 459.44

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Solution

The fourth proportional to 1,044.74, 1,567.14 and 459.44 is: 689.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.74 : 1,567.14 = 459.44 : x
  2. Step 2: Convert to fraction form
    1,044.74/1,567.14 = 459.44/x
  3. Step 3: Cross multiply
    1,044.74x = 1,567.14 × 459.44
  4. Step 4: Simplify right side
    1,044.74x = 720,006.80
  5. Step 5: Solve for x
    x = 720,006.80/1,044.74
  6. Step 6: Final answer
    x = 689.17

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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.