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Finding the Fourth Proportional to 934.68, 1,401.18 and 357.96

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Solution

The fourth proportional to 934.68, 1,401.18 and 357.96 is: 536.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    934.68 : 1,401.18 = 357.96 : x
  2. Step 2: Convert to fraction form
    934.68/1,401.18 = 357.96/x
  3. Step 3: Cross multiply
    934.68x = 1,401.18 × 357.96
  4. Step 4: Simplify right side
    934.68x = 501,566.39
  5. Step 5: Solve for x
    x = 501,566.39/934.68
  6. Step 6: Final answer
    x = 536.62

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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.