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Finding the Fourth Proportional to 1,062.06, 1,466.04 and 619.97

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Solution

The fourth proportional to 1,062.06, 1,466.04 and 619.97 is: 855.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.06 : 1,466.04 = 619.97 : x
  2. Step 2: Convert to fraction form
    1,062.06/1,466.04 = 619.97/x
  3. Step 3: Cross multiply
    1,062.06x = 1,466.04 × 619.97
  4. Step 4: Simplify right side
    1,062.06x = 908,893.49
  5. Step 5: Solve for x
    x = 908,893.49/1,062.06
  6. Step 6: Final answer
    x = 855.78

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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.