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Finding the Fourth Proportional to 1,044.75, 1,567.68 and 698.27

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Solution

The fourth proportional to 1,044.75, 1,567.68 and 698.27 is: 1,047.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.75 : 1,567.68 = 698.27 : x
  2. Step 2: Convert to fraction form
    1,044.75/1,567.68 = 698.27/x
  3. Step 3: Cross multiply
    1,044.75x = 1,567.68 × 698.27
  4. Step 4: Simplify right side
    1,044.75x = 1,094,656.08
  5. Step 5: Solve for x
    x = 1,094,656.08/1,044.75
  6. Step 6: Final answer
    x = 1,047.77

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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.