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Finding the Fourth Proportional to 274,289.70, 411,434.55 and 174,890.55

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Solution

The fourth proportional to 274,289.70, 411,434.55 and 174,890.55 is: 262,335.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,289.70 : 411,434.55 = 174,890.55 : x
  2. Step 2: Convert to fraction form
    274,289.70/411,434.55 = 174,890.55/x
  3. Step 3: Cross multiply
    274,289.70x = 411,434.55 × 174,890.55
  4. Step 4: Simplify right side
    274,289.70x = 71,956,014,738.50
  5. Step 5: Solve for x
    x = 71,956,014,738.50/274,289.70
  6. Step 6: Final answer
    x = 262,335.83

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1.5x scale

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.