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Finding the Fourth Proportional to 1,464.91, 2,020.65 and 897.48

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Solution

The fourth proportional to 1,464.91, 2,020.65 and 897.48 is: 1,237.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,464.91 : 2,020.65 = 897.48 : x
  2. Step 2: Convert to fraction form
    1,464.91/2,020.65 = 897.48/x
  3. Step 3: Cross multiply
    1,464.91x = 2,020.65 × 897.48
  4. Step 4: Simplify right side
    1,464.91x = 1,813,489.60
  5. Step 5: Solve for x
    x = 1,813,489.60/1,464.91
  6. Step 6: Final answer
    x = 1,237.96

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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.