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Finding the Fourth Proportional to 1,073.74, 1,482 and 654.24

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Solution

The fourth proportional to 1,073.74, 1,482 and 654.24 is: 903.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073.74 : 1,482 = 654.24 : x
  2. Step 2: Convert to fraction form
    1,073.74/1,482 = 654.24/x
  3. Step 3: Cross multiply
    1,073.74x = 1,482 × 654.24
  4. Step 4: Simplify right side
    1,073.74x = 969,583.68
  5. Step 5: Solve for x
    x = 969,583.68/1,073.74
  6. Step 6: Final answer
    x = 903.00

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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.