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Finding the Fourth Proportional to 393,025.37, 541,989.71 and 249,536.30

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Solution

The fourth proportional to 393,025.37, 541,989.71 and 249,536.30 is: 344,115.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,025.37 : 541,989.71 = 249,536.30 : x
  2. Step 2: Convert to fraction form
    393,025.37/541,989.71 = 249,536.30/x
  3. Step 3: Cross multiply
    393,025.37x = 541,989.71 × 249,536.30
  4. Step 4: Simplify right side
    393,025.37x = 135,246,106,978.77
  5. Step 5: Solve for x
    x = 135,246,106,978.77/393,025.37
  6. Step 6: Final answer
    x = 344,115.46

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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.