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Finding the Fourth Proportional to 1,109.77, 1,665.66 and 562.33

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Solution

The fourth proportional to 1,109.77, 1,665.66 and 562.33 is: 844.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109.77 : 1,665.66 = 562.33 : x
  2. Step 2: Convert to fraction form
    1,109.77/1,665.66 = 562.33/x
  3. Step 3: Cross multiply
    1,109.77x = 1,665.66 × 562.33
  4. Step 4: Simplify right side
    1,109.77x = 936,645.41
  5. Step 5: Solve for x
    x = 936,645.41/1,109.77
  6. Step 6: Final answer
    x = 844.00

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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.