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Finding the Fourth Proportional to 1,124.94, 1,687.64 and 467.17

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Solution

The fourth proportional to 1,124.94, 1,687.64 and 467.17 is: 700.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.94 : 1,687.64 = 467.17 : x
  2. Step 2: Convert to fraction form
    1,124.94/1,687.64 = 467.17/x
  3. Step 3: Cross multiply
    1,124.94x = 1,687.64 × 467.17
  4. Step 4: Simplify right side
    1,124.94x = 788,408.22
  5. Step 5: Solve for x
    x = 788,408.22/1,124.94
  6. Step 6: Final answer
    x = 700.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.