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Finding the Fourth Proportional to 1,332.22, 1,998.17 and 358.24

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Solution

The fourth proportional to 1,332.22, 1,998.17 and 358.24 is: 537.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332.22 : 1,998.17 = 358.24 : x
  2. Step 2: Convert to fraction form
    1,332.22/1,998.17 = 358.24/x
  3. Step 3: Cross multiply
    1,332.22x = 1,998.17 × 358.24
  4. Step 4: Simplify right side
    1,332.22x = 715,824.42
  5. Step 5: Solve for x
    x = 715,824.42/1,332.22
  6. Step 6: Final answer
    x = 537.32

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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.