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Finding the Fourth Proportional to 1,133.58, 1,700.22 and 483.78

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Solution

The fourth proportional to 1,133.58, 1,700.22 and 483.78 is: 725.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.58 : 1,700.22 = 483.78 : x
  2. Step 2: Convert to fraction form
    1,133.58/1,700.22 = 483.78/x
  3. Step 3: Cross multiply
    1,133.58x = 1,700.22 × 483.78
  4. Step 4: Simplify right side
    1,133.58x = 822,532.43
  5. Step 5: Solve for x
    x = 822,532.43/1,133.58
  6. Step 6: Final answer
    x = 725.61

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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.