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Finding the Fourth Proportional to 1,025.06, 1,537.64 and 616.82

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Solution

The fourth proportional to 1,025.06, 1,537.64 and 616.82 is: 925.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025.06 : 1,537.64 = 616.82 : x
  2. Step 2: Convert to fraction form
    1,025.06/1,537.64 = 616.82/x
  3. Step 3: Cross multiply
    1,025.06x = 1,537.64 × 616.82
  4. Step 4: Simplify right side
    1,025.06x = 948,436.33
  5. Step 5: Solve for x
    x = 948,436.33/1,025.06
  6. Step 6: Final answer
    x = 925.25

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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.