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Finding the Fourth Proportional to 1,035.64, 1,553.69 and 332.84

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Solution

The fourth proportional to 1,035.64, 1,553.69 and 332.84 is: 499.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035.64 : 1,553.69 = 332.84 : x
  2. Step 2: Convert to fraction form
    1,035.64/1,553.69 = 332.84/x
  3. Step 3: Cross multiply
    1,035.64x = 1,553.69 × 332.84
  4. Step 4: Simplify right side
    1,035.64x = 517,120.75
  5. Step 5: Solve for x
    x = 517,120.75/1,035.64
  6. Step 6: Final answer
    x = 499.33

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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.