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Finding the Fourth Proportional to 1,028.04, 1,418.76 and 562.32

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Solution

The fourth proportional to 1,028.04, 1,418.76 and 562.32 is: 776.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.04 : 1,418.76 = 562.32 : x
  2. Step 2: Convert to fraction form
    1,028.04/1,418.76 = 562.32/x
  3. Step 3: Cross multiply
    1,028.04x = 1,418.76 × 562.32
  4. Step 4: Simplify right side
    1,028.04x = 797,797.12
  5. Step 5: Solve for x
    x = 797,797.12/1,028.04
  6. Step 6: Final answer
    x = 776.04

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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.