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Finding the Fourth Proportional to 429,989.78, 593,393.00 and 236,405.67

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Solution

The fourth proportional to 429,989.78, 593,393.00 and 236,405.67 is: 326,243.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,989.78 : 593,393.00 = 236,405.67 : x
  2. Step 2: Convert to fraction form
    429,989.78/593,393.00 = 236,405.67/x
  3. Step 3: Cross multiply
    429,989.78x = 593,393.00 × 236,405.67
  4. Step 4: Simplify right side
    429,989.78x = 140,281,468,556.28
  5. Step 5: Solve for x
    x = 140,281,468,556.28/429,989.78
  6. Step 6: Final answer
    x = 326,243.73

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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.