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Finding the Fourth Proportional to 358,716.56, 495,063.79 and 267,914.87

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Solution

The fourth proportional to 358,716.56, 495,063.79 and 267,914.87 is: 369,748.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,716.56 : 495,063.79 = 267,914.87 : x
  2. Step 2: Convert to fraction form
    358,716.56/495,063.79 = 267,914.87/x
  3. Step 3: Cross multiply
    358,716.56x = 495,063.79 × 267,914.87
  4. Step 4: Simplify right side
    358,716.56x = 132,634,947,794.45
  5. Step 5: Solve for x
    x = 132,634,947,794.45/358,716.56
  6. Step 6: Final answer
    x = 369,748.60

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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.