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Finding the Fourth Proportional to 274,257.80, 412,077.90 and 174,465.80

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Solution

The fourth proportional to 274,257.80, 412,077.90 and 174,465.80 is: 262,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,257.80 : 412,077.90 = 174,465.80 : x
  2. Step 2: Convert to fraction form
    274,257.80/412,077.90 = 174,465.80/x
  3. Step 3: Cross multiply
    274,257.80x = 412,077.90 × 174,465.80
  4. Step 4: Simplify right side
    274,257.80x = 71,893,500,485.82
  5. Step 5: Solve for x
    x = 71,893,500,485.82/274,257.80
  6. Step 6: Final answer
    x = 262,138.40

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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.