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Finding the Fourth Proportional to 1,148.34, 1,584.98 and 651.27

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Solution

The fourth proportional to 1,148.34, 1,584.98 and 651.27 is: 898.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148.34 : 1,584.98 = 651.27 : x
  2. Step 2: Convert to fraction form
    1,148.34/1,584.98 = 651.27/x
  3. Step 3: Cross multiply
    1,148.34x = 1,584.98 × 651.27
  4. Step 4: Simplify right side
    1,148.34x = 1,032,245.34
  5. Step 5: Solve for x
    x = 1,032,245.34/1,148.34
  6. Step 6: Final answer
    x = 898.91

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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.