Home / 1,116.12-1,674.18-294.46

Finding the Fourth Proportional to 1,116.12, 1,674.18 and 294.46

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Solution

The fourth proportional to 1,116.12, 1,674.18 and 294.46 is: 441.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.12 : 1,674.18 = 294.46 : x
  2. Step 2: Convert to fraction form
    1,116.12/1,674.18 = 294.46/x
  3. Step 3: Cross multiply
    1,116.12x = 1,674.18 × 294.46
  4. Step 4: Simplify right side
    1,116.12x = 492,979.04
  5. Step 5: Solve for x
    x = 492,979.04/1,116.12
  6. Step 6: Final answer
    x = 441.69

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Double scale
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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.