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Finding the Fourth Proportional to 264,085.80, 396,711.90 and 254,171.40

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Solution

The fourth proportional to 264,085.80, 396,711.90 and 254,171.40 is: 381,818.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,085.80 : 396,711.90 = 254,171.40 : x
  2. Step 2: Convert to fraction form
    264,085.80/396,711.90 = 254,171.40/x
  3. Step 3: Cross multiply
    264,085.80x = 396,711.90 × 254,171.40
  4. Step 4: Simplify right side
    264,085.80x = 100,832,819,019.66
  5. Step 5: Solve for x
    x = 100,832,819,019.66/264,085.80
  6. Step 6: Final answer
    x = 381,818.41

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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.