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Finding the Fourth Proportional to 1,464.48, 2,017.44 and 997.92

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Solution

The fourth proportional to 1,464.48, 2,017.44 and 997.92 is: 1,374.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,464.48 : 2,017.44 = 997.92 : x
  2. Step 2: Convert to fraction form
    1,464.48/2,017.44 = 997.92/x
  3. Step 3: Cross multiply
    1,464.48x = 2,017.44 × 997.92
  4. Step 4: Simplify right side
    1,464.48x = 2,013,243.72
  5. Step 5: Solve for x
    x = 2,013,243.72/1,464.48
  6. Step 6: Final answer
    x = 1,374.72

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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.