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Finding the Fourth Proportional to 1,124.82, 1,552.14 and 627.38

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Solution

The fourth proportional to 1,124.82, 1,552.14 and 627.38 is: 865.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.82 : 1,552.14 = 627.38 : x
  2. Step 2: Convert to fraction form
    1,124.82/1,552.14 = 627.38/x
  3. Step 3: Cross multiply
    1,124.82x = 1,552.14 × 627.38
  4. Step 4: Simplify right side
    1,124.82x = 973,778.58
  5. Step 5: Solve for x
    x = 973,778.58/1,124.82
  6. Step 6: Final answer
    x = 865.72

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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.