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Finding the Fourth Proportional to 358,735.80, 538,103.70 and 344,957.70

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Solution

The fourth proportional to 358,735.80, 538,103.70 and 344,957.70 is: 517,436.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,735.80 : 538,103.70 = 344,957.70 : x
  2. Step 2: Convert to fraction form
    358,735.80/538,103.70 = 344,957.70/x
  3. Step 3: Cross multiply
    358,735.80x = 538,103.70 × 344,957.70
  4. Step 4: Simplify right side
    358,735.80x = 185,623,014,713.49
  5. Step 5: Solve for x
    x = 185,623,014,713.49/358,735.80
  6. Step 6: Final answer
    x = 517,436.55

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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.