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Finding the Fourth Proportional to 543,712.06, 750,343.89 and 302,012.86

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Solution

The fourth proportional to 543,712.06, 750,343.89 and 302,012.86 is: 416,789.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,712.06 : 750,343.89 = 302,012.86 : x
  2. Step 2: Convert to fraction form
    543,712.06/750,343.89 = 302,012.86/x
  3. Step 3: Cross multiply
    543,712.06x = 750,343.89 × 302,012.86
  4. Step 4: Simplify right side
    543,712.06x = 226,613,504,202.43
  5. Step 5: Solve for x
    x = 226,613,504,202.43/543,712.06
  6. Step 6: Final answer
    x = 416,789.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.