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Finding the Fourth Proportional to 1,110.98, 1,533.15 and 606.83

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Solution

The fourth proportional to 1,110.98, 1,533.15 and 606.83 is: 837.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.98 : 1,533.15 = 606.83 : x
  2. Step 2: Convert to fraction form
    1,110.98/1,533.15 = 606.83/x
  3. Step 3: Cross multiply
    1,110.98x = 1,533.15 × 606.83
  4. Step 4: Simplify right side
    1,110.98x = 930,365.25
  5. Step 5: Solve for x
    x = 930,365.25/1,110.98
  6. Step 6: Final answer
    x = 837.43

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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.