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Finding the Fourth Proportional to 351,243.48, 526,709.70 and 252,332.76

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Solution

The fourth proportional to 351,243.48, 526,709.70 and 252,332.76 is: 378,387.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,243.48 : 526,709.70 = 252,332.76 : x
  2. Step 2: Convert to fraction form
    351,243.48/526,709.70 = 252,332.76/x
  3. Step 3: Cross multiply
    351,243.48x = 526,709.70 × 252,332.76
  4. Step 4: Simplify right side
    351,243.48x = 132,906,112,319.77
  5. Step 5: Solve for x
    x = 132,906,112,319.77/351,243.48
  6. Step 6: Final answer
    x = 378,387.41

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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.