Home / 1,217.67-1,826.55-352.05

Finding the Fourth Proportional to 1,217.67, 1,826.55 and 352.05

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Solution

The fourth proportional to 1,217.67, 1,826.55 and 352.05 is: 528.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217.67 : 1,826.55 = 352.05 : x
  2. Step 2: Convert to fraction form
    1,217.67/1,826.55 = 352.05/x
  3. Step 3: Cross multiply
    1,217.67x = 1,826.55 × 352.05
  4. Step 4: Simplify right side
    1,217.67x = 643,036.93
  5. Step 5: Solve for x
    x = 643,036.93/1,217.67
  6. Step 6: Final answer
    x = 528.09

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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.