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Finding the Fourth Proportional to 1,116.95, 1,675.49 and 336.92

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Solution

The fourth proportional to 1,116.95, 1,675.49 and 336.92 is: 505.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.95 : 1,675.49 = 336.92 : x
  2. Step 2: Convert to fraction form
    1,116.95/1,675.49 = 336.92/x
  3. Step 3: Cross multiply
    1,116.95x = 1,675.49 × 336.92
  4. Step 4: Simplify right side
    1,116.95x = 564,496.03
  5. Step 5: Solve for x
    x = 564,496.03/1,116.95
  6. Step 6: Final answer
    x = 505.39

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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.