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Finding the Fourth Proportional to 1,460.42, 2,015.38 and 797.28

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Solution

The fourth proportional to 1,460.42, 2,015.38 and 797.28 is: 1,100.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,460.42 : 2,015.38 = 797.28 : x
  2. Step 2: Convert to fraction form
    1,460.42/2,015.38 = 797.28/x
  3. Step 3: Cross multiply
    1,460.42x = 2,015.38 × 797.28
  4. Step 4: Simplify right side
    1,460.42x = 1,606,822.17
  5. Step 5: Solve for x
    x = 1,606,822.17/1,460.42
  6. Step 6: Final answer
    x = 1,100.25

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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.