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Finding the Fourth Proportional to 529,458.80, 794,581.86 and 213,918.44

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Solution

The fourth proportional to 529,458.80, 794,581.86 and 213,918.44 is: 321,036.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,458.80 : 794,581.86 = 213,918.44 : x
  2. Step 2: Convert to fraction form
    529,458.80/794,581.86 = 213,918.44/x
  3. Step 3: Cross multiply
    529,458.80x = 794,581.86 × 213,918.44
  4. Step 4: Simplify right side
    529,458.80x = 169,975,711,943.50
  5. Step 5: Solve for x
    x = 169,975,711,943.50/529,458.80
  6. Step 6: Final answer
    x = 321,036.71

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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.