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Finding the Fourth Proportional to 1,076.83, 1,613.86 and 529.17

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Solution

The fourth proportional to 1,076.83, 1,613.86 and 529.17 is: 793.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076.83 : 1,613.86 = 529.17 : x
  2. Step 2: Convert to fraction form
    1,076.83/1,613.86 = 529.17/x
  3. Step 3: Cross multiply
    1,076.83x = 1,613.86 × 529.17
  4. Step 4: Simplify right side
    1,076.83x = 853,998.92
  5. Step 5: Solve for x
    x = 853,998.92/1,076.83
  6. Step 6: Final answer
    x = 793.07

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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.