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Finding the Fourth Proportional to 331,550.70, 497,034.45 and 198,483.90

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Solution

The fourth proportional to 331,550.70, 497,034.45 and 198,483.90 is: 297,551.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,550.70 : 497,034.45 = 198,483.90 : x
  2. Step 2: Convert to fraction form
    331,550.70/497,034.45 = 198,483.90/x
  3. Step 3: Cross multiply
    331,550.70x = 497,034.45 × 198,483.90
  4. Step 4: Simplify right side
    331,550.70x = 98,653,336,070.36
  5. Step 5: Solve for x
    x = 98,653,336,070.36/331,550.70
  6. Step 6: Final answer
    x = 297,551.28

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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.