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Finding the Fourth Proportional to 996.88, 1,495.86 and 483.88

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Solution

The fourth proportional to 996.88, 1,495.86 and 483.88 is: 726.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.88 : 1,495.86 = 483.88 : x
  2. Step 2: Convert to fraction form
    996.88/1,495.86 = 483.88/x
  3. Step 3: Cross multiply
    996.88x = 1,495.86 × 483.88
  4. Step 4: Simplify right side
    996.88x = 723,816.74
  5. Step 5: Solve for x
    x = 723,816.74/996.88
  6. Step 6: Final answer
    x = 726.08

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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.