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Finding the Fourth Proportional to 1,093.94, 1,640.96 and 610.07

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Solution

The fourth proportional to 1,093.94, 1,640.96 and 610.07 is: 915.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.94 : 1,640.96 = 610.07 : x
  2. Step 2: Convert to fraction form
    1,093.94/1,640.96 = 610.07/x
  3. Step 3: Cross multiply
    1,093.94x = 1,640.96 × 610.07
  4. Step 4: Simplify right side
    1,093.94x = 1,001,091.50
  5. Step 5: Solve for x
    x = 1,001,091.50/1,093.94
  6. Step 6: Final answer
    x = 915.13

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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.