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Finding the Fourth Proportional to 364,963.89, 503,614.18 and 203,815.48

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Solution

The fourth proportional to 364,963.89, 503,614.18 and 203,815.48 is: 281,245.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,963.89 : 503,614.18 = 203,815.48 : x
  2. Step 2: Convert to fraction form
    364,963.89/503,614.18 = 203,815.48/x
  3. Step 3: Cross multiply
    364,963.89x = 503,614.18 × 203,815.48
  4. Step 4: Simplify right side
    364,963.89x = 102,644,365,831.51
  5. Step 5: Solve for x
    x = 102,644,365,831.51/364,963.89
  6. Step 6: Final answer
    x = 281,245.26

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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.